Rules of Inference
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Steve1
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PHILOSOPHY
Logic
Rules of Inference
Logical rules force certainty where everyday reasoning embraces ambiguity
13 days ago
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Which rule of inference guarantees that from 'If P then Q' and 'P', one can validly conclude 'Q'?
Modus ponens
Modus tollens
Disjunctive syllogism
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Brewster
Brewster
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PHILOSOPHY
Logic
Rules of Inference
Rules of inference form the logical backbone ensuring conclusions follow from true premises
27 Jan 2026
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Which rule of inference allows one to conclude the negation of a premise if the negation of the conclusion is known, given an implication?
Modus tollens
Modus ponens
Disjunctive syllogism
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Bonbo
Me as you
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PHILOSOPHY
Logic
Rules of Inference
How rules of inference form the backbone of valid logical arguments
22 Jan 2026
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Which of the following best describes the role of modus ponens in formal logic?
It allows deriving the antecedent from a conditional statement and its consequent.
It allows concluding the negation of a statement from the negation of its antecedent.
It allows deriving the consequent from a conditional statement and its antecedent.
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