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20 Cards in this Set
- Front
- Back
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symbol for negation |
tilde |
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symbol for conjunction |
dot |
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symbol for disjunction |
wedge |
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symbol for conditional |
horseshoe |
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symbol for biconditional |
triple bar |
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a conjunction will only be ___ when... |
true, when each conjunct is true |
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a disjunction will only be ___ when... |
false, when each disjunct is false |
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a conditional will be ___ when... |
false, when the antecedent is true and the consequent is false |
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a biconditional is ___ when... |
true, both p and q have the same truth values |
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contingent statements are what? |
neither necessarily true not necessarily false |
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noncontingent statements are? |
either always true (tautology) or always false (self-contradictory) |
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logical equivalence |
when 2 truth-functional statements have identical truth tables under the main operator |
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modus ponens form |
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modus tollens form |
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hypothetical syllogism form |
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disjunctive syllogism form |
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constructive dilemma form |
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simplification form |
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conjunction form |
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addition form |
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