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Mathematical Reasoning

Total questions: 12

Worksheet time: 20mins

Name
Class
Date
1.

Identify the rule used in each of the following arguments: 

A1: (P Q)(RS)A1:\ \left(P\ \rightarrow Q\right)\vee\left(R\leftrightarrow S\right)  

A2: ¬ (PQ) A2:\ \neg\ \left(P\vee Q\right)\ \text{}  

Conclusion: R  SConclusion:\ R\ \leftrightarrow\ S  

a)

Hypothetical Syllogism

b)

Modus Ponens

c)

Disjunctive Syllogism

d)

Resolution

2.

Identify the rule used in each of the following arguments: 

A1: (PQ)  RA1:\ \left(P\wedge Q\right)\ \rightarrow\ R  

A2: R (S T)A2:\ R\ \rightarrow\left(S\vee\ T\right)  

Conclusion: (P  Q)  (S  T)Conclusion:\ \left(P\ \wedge\ Q\right)\ \rightarrow\ \left(S\ \vee\ T\right)  

a)

Modus Tollens

b)

Hypothetical Syllogism

c)

Modus Ponens

d)

Addition

3.

Identify the rule used in each of the following arguments:  

A1: [P (Q  R)]A1:\ \left[P\rightarrow\ \left(Q\ \wedge\ R\right)\right]  

A2: [RU]A2:\ \left[R\oplus U\right]  

Conclusion:  [P (Q  R)]  [R U]Conclusion:\ \ \left[P\rightarrow\ \left(Q\ \wedge\ R\right)\right]\ \wedge\ \left[R\ \oplus U\right]   

a)

Disjunctive Syllogism

b)

Resolution

c)

Addition

d)

Conjunction

4.

Identify the rule used in each of the following arguments: 

A1: [P  Q]  [R  S]A1:\ \left[P\ \oplus\ Q\right]\ \rightarrow\ \left[R\ \wedge\ S\right]  

A2: ¬[R  S]A2:\ \neg\left[R\ \wedge\ S\right]  

Conclusion: ¬[P  Q]Conclusion:\ \neg\left[P\ \oplus\ Q\right]  

a)

Hypothetical Syllogism

b)

Modus Ponens

c)

Modus Tollens

d)

Disjunctive Syllogism

5.

Identify the rule used in each of the following arguments: 

A1: If you are a worthy, then you can lift the hammer.

A2: You cannot lift the hammer.

Conclusion: You are not worthy.

a)

Resolution

b)

Modus Tollens

c)

Conjunction

d)

Addition

6.

Identify the rule used in each of the following arguments: 

A1: If you are a fan of Marvel, then you should watch Doctor Strange in the Multiverse of Madness.

A2: I am from Nueva Ecija.

Conclusion: If you are a fan of Marvel, then you should watch Doctor Strange in the Multiverse of Madness and I am from Nueva Ecija.

a)

Resolution

b)

Disjunctive Syllogism

c)

Addition

d)

Conjunction

7.

Identify the rule used in each of the following arguments:

A1: The number x is a prime number and is also even.

Conclusion: The number x is a prime number.

a)

Conjunction

b)

Addition

c)

Simplification

d)

None of the above

8.

Identify all of the rules that are used in each of the following arguments:

A1: P (Q  R)A1:\ P\ \rightarrow\left(Q\ \vee\ R\right)  

A2: PA2:\ P  

A3: ¬RA3:\ \neg R  

Conclusion: QConclusion:\ Q  

I. Modus Ponens

II. Addition

III. Simplification

IV. Conjunction

V. Modus Tollens

VI. Hypothetical Syllogism

VII. Disjunctive Syllogism

VIII. Resolution

a)

I and II

b)

I and IV

c)

I and V

d)

I and VII

9.

Identify all of the rules that are used in each of the following arguments:

A1: P  QA1:\ P\ \wedge\ Q   

A2: PRA2:\ P\rightarrow R  

  Conclusion: RConclusion:\ R  

 

 

I. Modus Ponens

II. Addition

III. Simplification

IV. Conjunction

V. Modus Tollens

VI. Hypothetical Syllogism

VII. Disjunctive Syllogism

VIII. Resolution

a)

IV and V

b)

V and VI

c)

I and III

d)

I, II and III

10.

Identify all of the rules that are used in each of the following arguments:

A1: (P  Q)  (R  S) A1:\ \left(P\ \rightarrow\ Q\right)\ \vee\ \left(R\ \rightarrow\ S\right)\    

  A2: ¬(P  Q) (W)A2:\ \neg\left(P\ \rightarrow\ Q\right)\vee\ \left(W\right)  

A3: ¬WA3:\ \neg W  

A4: ¬SA4:\ \neg S  

Conclusion: ¬RConclusion:\ \neg R  

  

 

 

I. Modus Ponens

II. Addition

III. Simplification

IV. Conjunction

V. Modus Tollens

VI. Hypothetical Syllogism

VII. Disjunctive Syllogism

VIII. Resolution

a)

V, VII and VIII

b)

I, II and IV

c)

III, IV and VIII

d)

None of the above

11.

Identify all of the rules that are used in each of the following arguments:

   A1: You are a good personA1:\ You\ are\ a\ good\ person   

A2: You love your parents very muchA2:\ You\ love\ your\ parents\ very\ much  

A3: If you are a good person and loves your parents very much, then you will have a happy lifeA3:\ If\ you\ are\ a\ good\ person\ and\ loves\ your\ parents\ very\ much,\ then\ you\ will\ have\ a\ happy\ life  

 

  

 

 

I. Modus Ponens

II. Addition

III. Simplification

IV. Conjunction

V. Modus Tollens

VI. Hypothetical Syllogism

VII. Disjunctive Syllogism

VIII. Resolution

a)

I and II

b)

I and III

c)

I and IV

d)

II and V

12.

Identify all of the rules that are used in each of the following arguments:

    

  A1: He likes Math and ScienceA1:\ He\ likes\ Math\ and\ Science  

  A2: He is from MarsA2:\ He\ is\ from\ Mars  

  A3: If he likes Math and is from Mars, then he is an alienA3:\ If\ he\ likes\ Math\ and\ is\ from\ Mars,\ then\ he\ is\ an\ alien  

   Conclusion: He is an alien.Conclusion:\ He\ is\ an\ alien.  

 

 

I. Modus Ponens

II. Addition

III. Simplification

IV. Conjunction

V. Modus Tollens

VI. Hypothetical Syllogism

VII. Disjunctive Syllogism

VIII. Resolution

a)

I and III

b)

II and III

c)

I, III and IV

d)

I, II, III and V