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Exam 10: Symbolizing Statements and Argument Forms

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Question 1

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A statement form that has only true substitution instances is called ……………………

A) a " tautologous statement form " or a " tautology"
B) a self-contradictory statement form or contradiction
C) A contingent statement form
D) specific statement form

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Question 2

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…………………. statements have the same meaning and may be substituted for one another

A) Materially equivalent
B) Logically equivalent
C) Tautologous
D) self-contradictory

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Question 3

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"p only if q " is symbolized as ……………………….

p v q) is logically equivalent to ………………………………..

"If a statement is true, then it is implied by any statement whatever" is symbolized as

' The conjunction of p with the disjunction of q with r', is symbolized as …….

If the specific form of a given argument has any substitution instance whose premises are true and whose conclusion is false, then the given argument is.

Ramesh and Dinesh will both not be elected.

Two statements are ………………… when their material equivalence is a tautology

' q if p ' is symbolized as……………………………….

An argument can be proved invalid by constructing another argument of the same form with …………………….

Any argument that results from the substitution of statements for statement variables in an argument form is called ………………………………

'The disjunction whose first disjunct is the conjunction of p and q and whose second disjunct is r ' is symbolized as ………………………..

Statement forms that have both true and false statements among their substitution instances are called ……………………………………………..

Refutation by logical analogy is based on the fact that any argument whose specific form is an invalid argument form is ………………………..

Fallacy of Denyingthe Antecedent- is symbolized as

The negaton of A V B is symbolized as ………………

Fallacy of Affirming the Consequent- is symbolized as

'statement form from which the statement results by substituting a different simple statement for each different statement variable' is called ……………………..

" If a statement is false, then it implies any statement whatever"