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Traditional Logic II

Martin Cothran Instructor

Reduction of

What is Reduction? Two Methods of Reduction How to Use the Mnemonic Verse Four Operations for Reduction Review of Conversion Reduction Involving Conversion Review of Partial Conversion Reduction Using Partial Conversion Reduction Involving Multiple Steps Review Sample Exercises

1 Reduction of Syllogisms

What is Reduction? Two Methods of Reduction How to Use the Mnemonic Verse Four Operations for Reduction Review of Conversion Reduction Involving Conversion Review of Partial Conversion Reduction Using Partial Conversion Reduction Involving Multiple Steps Review Sample Exercises

What is Reduction?

Reduction of a is the process of changing a 2nd, 3rd, or 4th Figure syllogism into a syllogism of the 1st Figure

2 Two Reasons to Reduce Syllogisms:

First Figure syllogisms are more straightforward than syllogisms in other figures Reducing syllogisms to the First Figure will help you understand syllogisms better

Two Reasons to Reduce Syllogisms:

First Figure syllogisms are more straightforward than syllogisms in other figures Reducing syllogisms to the First Figure will help you understand syllogisms better

3 Two Reasons to Reduce Syllogisms:

First Figure syllogisms are more straightforward than syllogisms in other figures Reducing syllogisms to the First Figure will help you understand syllogisms better

Reduction of Syllogisms

What is Reduction? Two Methods of Reduction How to Use the Mnemonic Verse Four Operations for Reduction Review of Conversion Reduction Involving Conversion Review of Partial Conversion Reduction Using Partial Conversion Reduction Involving Multiple Steps Review Sample Exercises

4 Two Methods for Reducing Syllogisms

Direct Reduction Indirect Reduction

Two Methods for Reducing Syllogisms

Direct Reduction Indirect Reduction

5 Two Methods for Reducing Syllogisms

Direct Reduction Indirect Reduction

Reduction of Syllogisms

What is Reduction? Two Methods of Reduction How to Use the Mnemonic Verse Four Operations for Reduction Review of Conversion Reduction Involving Conversion Review of Partial Conversion Reduction Using Partial Conversion Reduction Involving Multiple Steps Review Sample Exercises

6 The Mnemonic Verse

BARBARA, CELARENT, DARII, FERIOque prioris; CESARE, CAMESTRES, FESTINO, BAROCO secundae; Tertia; DARAPTI, DISAMIS, DATISI, FELAPTON, BOCARDO, FERISON habet; Quarta insuper addit; BRAMANTIP, CAMENES, DIMARIS, FESAPO, FRESISON

The Mnemonic Verse

BARBARA, CELARENT, DARII, FERIOque prioris; CESARE, CAMESTRES, FESTINO, BAROCO secundae; Tertia; DARAPTI, DISAMIS, DATISI, FELAPTON, BOCARDO, FERISON habet; Quarta insuper addit; BRAMANTIP, CAMENES, DIMARIS, FESAPO, FRESISON

7 What the Consonants Mean

The first consonant in each name indicates the syllogism in the 1st Figure to which it reduces

The Mnemonic Verse

BARBARA, CELARENT, DARII, FERIOque prioris; CESARE, CAMESTRES, FESTINO, BAROCO secundae; Tertia; DARAPTI, DISAMIS, DATISI, FELAPTON, BOCARDO, FERISON habet; Quarta insuper addit; BRAMANTIP, CAMENES, DIMARIS, FESAPO, FRESISON

8 The Mnemonic Verse

BARBARA, CELARENT, DARII, FERIOque prioris; CESARE, CAMESTRES, FESTINO, BAROCO secundae; Tertia; DARAPTI, DISAMIS, DATISI, FELAPTON, BOCARDO, FERISON habet; Quarta insuper addit; BRAMANTIP, CAMENES, DIMARIS, FESAPO, FRESISON

The Mnemonic Verse

BARBARA, CELARENT, DARII, FERIOque prioris; CESARE, CAMESTRES, FESTINO, BAROCO secundae; Tertia; DARAPTI, DISAMIS, DATISI, FELAPTON, BOCARDO, FERISON habet; Quarta insuper addit; BRAMANTIP, CAMENES, DIMARIS, FESAPO, FRESISON

9 The Mnemonic Verse

BARBARA, CELARENT, DARII, FERIOque prioris; CESARE, CAMESTRES, FESTINO, BAROCO secundae; Tertia; DARAPTI, DISAMIS, DATISI, FELAPTON, BOCARDO, FERISON habet; Quarta insuper addit; BRAMANTIP, CAMENES, DIMARIS, FESAPO, FRESISON

The Mnemonic Verse

BARBARA, CELARENT, DARII, FERIOque prioris; CESARE, CAMESTRES, FESTINO, BAROCO secundae; Tertia; DARAPTI, DISAMIS, DATISI, FELAPTON, BOCARDO, FERISON habet; Quarta insuper addit; BRAMANTIP, CAMENES, DIMARIS, FESAPO, FRESISON

10 An Example

All chickensPd are birdsMu No horseSd is a birdMd No horseSd is a chickenPd

The Mnemonic Verse

BARBARA, CELARENT, DARII, FERIOque prioris; CESARE, CAMESTRES, FESTINO, BAROCO secundae; Tertia; DARAPTI, DISAMIS, DATISI, FELAPTON, BOCARDO, FERISON habet; Quarta insuper addit; BRAMANTIP, CAMENES, DIMARIS, FESAPO, FRESISON

11 The Mnemonic Verse

BARBARA, CELARENT, DARII, FERIOque prioris; CESARE, CAMESTRES, FESTINO, BAROCO secundae; Tertia; DARAPTI, DISAMIS, DATISI, FELAPTON, BOCARDO, FERISON habet; Quarta insuper addit; BRAMANTIP, CAMENES, DIMARIS, FESAPO, FRESISON

The Mnemonic Verse

BARBARA, CELARENT, DARII, FERIOque prioris; CESARE, CAMESTRES, FESTINO, BAROCO secundae; Tertia; DARAPTI, DISAMIS, DATISI, FELAPTON, BOCARDO, FERISON habet; Quarta insuper addit; BRAMANTIP, CAMENES, DIMARIS, FESAPO, FRESISON

12 The Mnemonic Verse

BARBARA, CELARENT, DARII, FERIOque prioris; CESARE, CAMESTRES, FESTINO, BAROCO secundae; Tertia; DARAPTI, DISAMIS, DATISI, FELAPTON, BOCARDO, FERISON habet; Quarta insuper addit; BRAMANTIP, CAMENES, DIMARIS, FESAPO, FRESISON

An Example

cAm: All chickensPd are birdsMu Est: No horseSd is a birdMd rEs: No horseSd is a chickenPd

13 The Mnemonic Verse

BARBARA, CELARENT, DARII, FERIOque prioris; CESARE, CAMESTRES, FESTINO, BAROCO secundae; Tertia; DARAPTI, DISAMIS, DATISI, FELAPTON, BOCARDO, FERISON habet; Quarta insuper addit; BRAMANTIP, CAMENES, DIMARIS, FESAPO, FRESISON

An Example

cEl: No birdMd is a horsePd Ar: All chickensSd are birdsMu Ent: No chickenSd is a horsePd

14 Reduction of Syllogisms

What is Reduction? Two Methods of Reduction How to Use the Mnemonic Verse Four Operations for Reduction Review of Conversion Reduction Involving Conversion Review of Partial Conversion Reduction Using Partial Conversion Reduction Involving Multiple Steps Review Sample Exercises

Rules for Reduction

S: Simple conversion of the proposition signified by the preceding vowel P: Per accidens, or partial conversion of the proposition signified by the preceding vowel M: Mutatio, or transposition of the premises; make the minor premise the major, and the major the minor C: Reduction by contradiction. This is the indirect method of reduction through (rather than to) BARBARA. It is signified by a non-initial c and is applied only to BAROCO AND BOCARDO

15 Rules for Reduction

S: Simple conversion of the proposition signified by the preceding vowel P: Per accidens, or partial conversion of the proposition signified by the preceding vowel M: Mutatio, or transposition of the premises; make the minor premise the major, and the major the minor C: Reduction by contradiction. This is the indirect method of reduction through (rather than to) BARBARA. It is signified by a non-initial c and is applied only to BAROCO AND BOCARDO

Rules for Reduction

S: Simple conversion of the proposition signified by the preceding vowel P: Per accidens, or partial conversion of the proposition signified by the preceding vowel M: Mutatio, or transposition of the premises; make the minor premise the major, and the major the minor C: Reduction by contradiction. This is the indirect method of reduction through (rather than to) BARBARA. It is signified by a non-initial c and is applied only to BAROCO AND BOCARDO

16 Rules for Reduction

S: Simple conversion of the proposition signified by the preceding vowel P: Per accidens, or partial conversion of the proposition signified by the preceding vowel M: Mutatio, or transposition of the premises; make the minor premise the major, and the major the minor C: Reduction by contradiction. This is the indirect method of reduction through (rather than to) BARBARA. It is signified by a non-initial c and is applied only to BAROCO AND BOCARDO

Rules for Reduction

S: Simple conversion of the proposition signified by the preceding vowel P: Per accidens, or partial conversion of the proposition signified by the preceding vowel M: Mutatio, or transposition of the premises; make the minor premise the major, and the major the minor C: Reduction by contradiction. This is the indirect method of reduction through (rather than to) BARBARA. It is signified by a non-initial c and is applied only to BAROCO AND BOCARDO

17 The Mnemonic Verse

BARBARA, CELARENT, DARII, FERIOque prioris; CESARE, CAMESTRES, FESTINO, BAROCO secundae; Tertia; DARAPTI, DISAMIS, DATISI, FELAPTON, BOCARDO, FERISON habet; Quarta insuper addit; BRAMANTIP, CAMENES, DIMARIS, FESAPO, FRESISON

Reducing a CESARE

cEs: No fishPd is a mammalMd Ar: All whalesSd are mammalsMu E: No whaleSd is a fishPd

18 Reducing a CESARE

prae-prae (2nd Figure) cEs: No fishPd is a mammalMd Ar: All whalesSd are mammalsMu E: No whaleSd is a fishPd

Reducing a CESARE

prae-prae (2nd Figure) cEs: No fishPd is a mammalMd Ar: All whalesSd are mammalsMu E: No whaleSd is a fishPd

19 Reducing a CESARE

prae-prae (2nd Figure) cEs: No fishPd is a mammalMd Ar: All whalesSd are mammalsMu E: No whaleSd is a fishPd

Reducing a CESARE

prae-prae (2nd Figure) cEs: No fishPd is a mammalMd Ar: All whalesSd are mammalsMu E: No whaleSd is a fishPd

20 Rules for Reduction

S: Simple conversion of the proposition signified by the preceding vowel P: Per accidens, or partial conversion of the proposition signified by the preceding vowel M: Mutatio, or transposition of the premises; make the minor premise the major, and the major the minor C: Reduction by contradiction. This is the indirect method of reduction through (rather than to) BARBARA. It is signified by a non-initial c and is applied only to BAROCO AND BOCARDO

Rules for Reduction

S: Simple conversion of the proposition signified by the preceding vowel P: Per accidens, or partial conversion of the proposition signified by the preceding vowel M: Mutatio, or transposition of the premises; make the minor premise the major, and the major the minor C: Reduction by contradiction. This is the indirect method of reduction through (rather than to) BARBARA. It is signified by a non-initial c and is applied only to BAROCO AND BOCARDO

21 Reduction of Syllogisms

What is Reduction? Two Methods of Reduction How to Use the Mnemonic Verse Four Operations for Reduction Review of Conversion Reduction Involving Conversion Review of Partial Conversion Reduction Using Partial Conversion Reduction Involving Multiple Steps Review Sample Exercises

Review of Conversion

Simple Conversion

22 Review of Conversion

Simple Conversion Obversion Contraposition

Simple Conversion

Switch the subject and the predicate

23 Simple Conversion

No robins are sparrows

Simple Conversion

No sparrows are robins

24 Reduction of Syllogisms

What is Reduction? Two Methods of Reduction How to Use the Mnemonic Verse Four Operations for Reduction Review of Conversion Reduction Involving Conversion Review of Partial Conversion Reduction Using Partial Conversion Reduction Involving Multiple Steps Review Sample Exercises

Simple Conversion of CESARE

cEs: No fishPd is a mammalMd Ar: All whalesSd are mammalsMu E: No whaleSd is a fishPd

25 Simple Conversion of CESARE

cEs: No fishPd is a mammalMd Ar: All whalesSd are mammalsMu E: No whaleSd is a fishPd

Simple Conversion of CESARE

cEs: No fishPd is a mammalMd Ar: All whalesSd are mammalsMu E: No whaleSd is a fishPd

26 Simple Conversion of CESARE

prae-prae (2nd Figure) cEs: No fishPd is a mammalMd Ar: All whalesSd are mammalsMu E: No whaleSd is a fishPd

Simple Conversion of CESARE

cEs: No mammalMd is a fishPd Ar: All whalesSd are mammalsMu E: No whaleSd is a fishPd

27 Resulting in a CELARENT

sub-prae (1st Figure) cEl: No mammalMd is a fishPd Ar: All whalesSd are mammalsMu Ent: No whaleSd is a fishPd

Resulting in a CELARENT

sub-prae (1st Figure) cEl: No mammalMd is a fishPd Ar: All whalesSd are mammalsMu Ent: No whaleSd is a fishPd

28 The Mnemonic Verse

BARBARA, CELARENT, DARII, FERIOque prioris; CESARE, CAMESTRES, FESTINO, BAROCO secundae; Tertia; DARAPTI, DISAMIS, DATISI, FELAPTON, BOCARDO, FERISON habet; Quarta insuper addit; BRAMANTIP, CAMENES, DIMARIS, FESAPO, FRESISON

The Mnemonic Verse

BARBARA, CELARENT, DARII, FERIOque prioris; CESARE, CAMESTRES, FESTINO, BAROCO secundae; Tertia; DARAPTI, DISAMIS, DATISI, FELAPTON, BOCARDO, FERISON habet; Quarta insuper addit; BRAMANTIP, CAMENES, DIMARIS, FESAPO, FRESISON

29 Reduction of Syllogisms

What is Reduction? Two Methods of Reduction How to Use the Mnemonic Verse Four Operations for Reduction Review of Conversion Reduction Involving Conversion Review of Partial Conversion Reduction Using Partial Conversion Reduction Involving Multiple Steps Review Sample Exercises

Review of Partial Conversion

Partial conversion is accomplished by interchanging the subject and predicate of an A statement and changing its quantity

30 Partial Conversion

All robins are birds

Partial Conversion

All birds are robins

31 Partial Conversion

Some birds are robins

Reduction of Syllogisms

What is Reduction? Two Methods of Reduction How to Use the Mnemonic Verse Four Operations for Reduction Review of Conversion Reduction Involving Conversion Review of Partial Conversion Reduction Using Partial Conversion Reduction Involving Multiple Steps Review Sample Exercises

32 Reducing a DARAPTI

sub-sub (3rd Figure) dAr: All turkeysMd are irritablePu Apt: All turkeysMd are birdsSu I: Some birdsSu are irritablePu

Reducing a DARAPTI

sub-sub (3rd Figure) dAr: All turkeysMd are irritablePu Apt: All turkeysMd are birdsSu I: Some birdsSu are irritablePu

33 Reducing a DARAPTI

sub-sub (3rd Figure) dAr: All turkeysMd are irritablePu Apt: All turkeysMd are birdsSu I: Some birdsSu are irritablePu

Reducing a DARAPTI

sub-sub (3rd Figure) dAr: All turkeysMd are irritablePu Apt: All turkeysMd are birdsSu I: Some birdsSu are irritablePu

34 Reducing a DARAPTI

sub-sub (3rd Figure) dAr: All turkeysMd are irritablePu Apt: All turkeysMd are birdsSu I: Some birdsSu are irritablePu

Reducing a DARAPTI

dAr: All turkeysMd are irritablePu Apt: All birdsSu are turkeysMd tI: Some birdsSu are irritablePu

35 Reducing a DARAPTI

dAr: All turkeysMd are irritablePu Apt: All birdsSu are turkeysMd I: Some birdsSu are irritablePu

Reducing a DARAPTI

dAr: All turkeysMd are irritablePu Apt: Some birdsSu are turkeysMd I: Some birdsSu are irritablePu

36 Reduction to DARII

sub-prae (1st Figure) dAr: All turkeysMd are irritablePu I: Some birdsSu are turkeysMd I: Some birdsSu are irritablePu

Reduction to DARII

sub-prae (1st Figure) dAr: All turkeysMd are irritablePu I: Some birdsSu are turkeysMd I: Some birdsSu are irritablePu

37 Reduction of Syllogisms

What is Reduction? Two Methods of Reduction How to Use the Mnemonic Verse Four Operations for Reduction Review of Conversion Reduction Involving Conversion Review of Partial Conversion Reduction Using Partial Conversion Reduction Involving Multiple Steps Review Sample Exercises

How to Reduce Using Multiple Steps

What if there is more than one reduction operation indicated by a syllogism name?

38 The Mnemonic Verse

BARBARA, CELARENT, DARII, FERIOque prioris; CESARE, CAMESTRES, FESTINO, BAROCO secundae; Tertia; DARAPTI, DISAMIS, DATISI, FELAPTON, BOCARDO, FERISON habet; Quarta insuper addit; BRAMANTIP, CAMENES, DIMARIS, FESAPO, FRESISON

The Mnemonic Verse

BARBARA, CELARENT, DARII, FERIOque prioris; CESARE, CAMESTRES, FESTINO, BAROCO secundae; Tertia; DARAPTI, DISAMIS, DATISI, FELAPTON, BOCARDO, FERISON habet; Quarta insuper addit; BRAMANTIP, CAMENES, DIMARIS, FESAPO, FRESISON

39 The Mnemonic Verse

BARBARA, CELARENT, DARII, FERIOque prioris; CESARE, CAMESTRES, FESTINO, BAROCO secundae; Tertia; DARAPTI, DISAMIS, DATISI, FELAPTON, BOCARDO, FERISON habet; Quarta insuper addit; BRAMANTIP, CAMENES, DIMARIS, FESAPO, FRESISON

Example of a syllogism requiring multiple step reduction

sub-sub (3rd Figure)

dIs: Some birdsMu are extinctPu Am: All birdsMd are animalsSu Is: Some animalsSu are extinctPu

40 Example of a syllogism requiring multiple step reduction

sub-sub (3rd Figure)

dIs: Some birdsMu are extinctPu Am: All birdsMd are animalsSu Is: Some animalsSu are extinctPu

Example of a syllogism requiring multiple step reduction

sub-sub (3rd Figure)

dIs: Some birdsMu are extinctPu Am: All birdsMd are animalsSu Is: Some animalsSu are extinctPu

41 Example of a syllogism requiring multiple step reduction

sub-sub (3rd Figure)

dIs: Some birdsMu are extinctPu Am: All birdsMd are animalsSu Is: Some animalsSu are extinctPu

How to Reduce Using Multiple Steps

Perform the reduction operations in the order in which they are indicated by the syllogism name

42 Reducing a DISAMIS

sub-sub (3rd Figure)

dIs: Some birdsMu are extinctPu Am: All birdsMd are animalsSu Is: Some animalsSu are extinctPu

Reducing a DISAMIS

sub-sub (3rd Figure)

dIs: Some birdsMu are extinctPu Am: All birdsMd are animalsSu Is: Some animalsSu are extinctPu

43 Reducing a DISAMIS

sub-sub (3rd Figure)

dIs: Some birdsMu are extinctPu Am: All birdsMd are animalsSu Is: Some animalsSu are extinctPu

Reducing a DISAMIS

sub-sub (3rd Figure)

dIs: Some birdsMu are extinctPu Am: All birdsMd are animalsSu Is: Some animalsSu are extinctPu

44 Reducing a DISAMIS

dIs: Some extinct thingsPu are birdsMu Am: All birdsMd are animalsSu Is: Some animalsSu are extinctPu

Reducing a DISAMIS

dIs: Some extinct thingsPu are birdsMu Am: All birdsMd are animalsSu Is: Some animalsSu are extinctPu

45 Reducing a DISAMIS

dIs: Some extinct thingsPu are birdsMu Am: All birdsMd are animalsSu Is: Some animalsSu are extinctPu

Reducing a DISAMIS

dAr: All birdsMd are animalsSu Im: Some extinct thingsPu are birdsMu Is: Some animalsSu are extinctPu

46 Reducing a DISAMIS

dAr: All birdsMd are animalsSu I: Some extinct thingsPu are birdsMu Is: Some animalsSu are extinctPu

Reducing a DISAMIS

dAr: All birdsMd are animalsSu I: Some extinct thingsPu are birdsMu Is: Some animalsSu are extinctPu

47 Reducing a DISAMIS

dAr: All birdsMd are animalsSu I: Some extinct thingsPu are birdsMu Is: Some animalsSu are extinctPu

Reducing to a DARII

dAr: All birdsMd are animalsPu I: Some extinct thingsSu are birdsMu I: Some extinct thingsSu are animalsPu

48 Reducing to a DARII

sub-prae (1st Figure) dAr: All birdsMd are animalsPu I: Some extinct thingsSu are birdsMu I: Some extinct thingsSu are animalsPu

Reducing to a DARII

sub-prae (1st Figure) dAr: All birdsMd are animalsPu I: Some extinct thingsSu are birdsMu I: Some extinct thingsSu are animalsPu

49 Reduction of Syllogisms

What is Reduction? Two Methods of Reduction How to Use the Mnemonic Verse Four Operations for Reduction Review of Conversion Reduction Involving Conversion Review of Partial Conversion Reduction Using Partial Conversion Reduction Involving Multiple Steps Review Sample Exercises

Review

Two Methods of Reduction

Four Operations of Reduction

Reduction Involving a Single Step

Reduction Involving Multiple Steps

50 Review

Two Methods of Reduction

Four Operations of Reduction

Reduction Involving a Single Step

Reduction Involving Multiple Steps

Review

Two Methods of Reduction

Four Operations of Reduction

Reduction Involving a Single Step

Reduction Involving Multiple Steps

51 Review

Two Methods of Reduction

Four Operations of Reduction

Reduction Involving a Single Step

Reduction Involving Multiple Steps

Review

Two Methods of Reduction

Four Operations of Reduction

Reduction Involving a Single Step

Reduction Involving Multiple Steps

52 Reduction of Syllogisms

What is Reduction? Two Methods of Reduction How to Use the Mnemonic Verse Four Operations for Reduction Review of Conversion Reduction Involving Conversion Review of Partial Conversion Reduction Using Partial Conversion Reduction Involving Multiple Steps Review Sample Exercises

Exercise 4

Why would logicians want to transform syllogisms in the other three figures to syllogisms in the First Figure?

53 Exercise 4

Why would logicians want to transform syllogisms in the other three figures to syllogisms in the First Figure?

First Figure syllogisms are more straightforward than syllogisms in other figures. In addition, the process of reducing syllogisms helps you to understand syllogisms better.

Exercise 15

To which syllogism in the First Figure does FESTINO reduce?

54 Exercise 15

To which syllogism in the First Figure does FESTINO reduce?

FESTINO reduces to FERIO.

Exercise 19

Explain what the consonants S, P, M and C indicate when they are found after the initial letters in the syllogism names?

55 Exercise 19

Explain what the consonants S, P, M and C indicate when they are found after the initial letters in the syllogism names?

These letters indicate which procedure must be used to change the proposition indicated by the preceding vowel.

Exercise 22

Reduce the following syllogism to the First Figure by following the procedures indicated:

Some saints are philosophers All philosophers are men Some men are saints

56 Exercise 22

What figure is the syllogism in?

Some saints are philosophers All philosophers are men Some men are saints

Prae-prae (4th Figure)

Exercise 22

What mood is the syllogism in?

I: Some saints are philosophers A: All philosophers are men I: Some men are saints

The IAI mood

57 Exercise 22

What mood is the syllogism in?

dIm: Some saints are philosophers Ar: All philosophers are men Is: Some men are saints

The IAI mood

Exercise 22

Which consonant (or consonants) tells you how to reduce to the First Figure? dIm: Some saintsPu are philosophersMu Ar: All philosophersMd are menSu Is: Some menSu are saintsPu

58 Exercise 22

Which consonant (or consonants) tells you how to reduce to the First Figure?

dIm:Some saintsPu are philosophersMu Ar: All philosophersMd are menSu Is:Some menSu are saintsPu

Exercise 22 Rules for Reduction

S: Simple conversion of the proposition signified by the preceding vowel P: Per accidens, or partial conversion of the proposition signified by the preceding vowel M: Mutatio, or transposition of the premises; make the minor premise the major, and the major the minor C: Reduction by contradiction. This is the indirect method of reduction through (rather than to) BARBARA. It is signified by a non-initial c and is applied only to BAROCO AND BOCARDO

59 Exercise 22

Reduce the following syllogism to the First Figure by following the procedures indicated:

dIm:Some saintsPu are philosophersMu Ar: All philosophersMd are menSu Is:Some menSu are saintsPu

Exercise 22

Reduce the following syllogism to the First Figure by following the procedures indicated:

dIm: Some saintsPu are philosophersMu Ar: All philosophersMd are menSu Is: Some menSu are saintsPu

60 Exercise 22

Reduce the following syllogism to the First Figure by following the procedures indicated:

dAr: All philosophersMd are menSu I: Some saintsPu are philosophersMu Is: Some menSu are saintsPu

Exercise 22

Reduce the following syllogism to the First Figure by following the procedures indicated:

dAr: All philosophersMd are menSu I: Some saintsPu are philosophersMu Is:Some menSu are saintsPu

61 Exercise 22

Reduce the following syllogism to the First Figure by following the procedures indicated:

dAr: All philosophersMd are menSu I: Some saintsPu are philosophersMu Is:Some menSu are saintsPu

Exercise 22

Reduce the following syllogism to the First Figure by following the procedures indicated: Write the syllogism after it has been reduced to the First Figure:

dAr: All philosophersMd are menPu I: Some saintsSu are philosophersMu I: Some saintsSu are menPu

62 Exercise 22

Write the syllogism after it has been reduced to the First Figure:

dAr: All philosophersMd are menPu I: Some saintsSu are philosophersMu I: Some saintsSu are menPu

Exercise 22

What mood is the syllogism now in (give the name)

dAr: All philosophersMd are menPu I: Some saintsSu are philosophersMu I: Some saintsSu are menPu

The syllogism is now a DARII

63 Exercise 22

Reduce the following syllogism to the First Figure by following the procedures indicated:

dAr: All philosophersMd are menPu I: Some saintsSu are philosophersMu I: Some saintsSu are menPu

Traditional Logic II

Martin Cothran Instructor

64