The statement form with only true substitution instances is called _________.
A) contradiction
B) contingent
C) conjunction
D) tautology
Correct Answer:
Verified
Q15: 'Either P or Q will be selected'
Q16: If A is true, X is false,
Q17: Bi-conditional proposition is a ----- proposition
A)implication
B)disjunction
C)simple
D)compound
Q18: _ symbol is used to connect statements
Q19: Two statements are logically equivalent when their
Q20: 'I will go to the cinema if
Q21: The statement form with only false substitution
Q23: 'p v q' is false if _.
A)only
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Q25: 'If antecedent, then consequent' is a general
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