Common deductive patterns – UGC NET Question

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U6 – Logical Reasoning and Indian Logic
Practice
Concepts: affirming consequent denying antecedent modus ponens modus tollens ugc net symbolic logic

Q: Select the wrong statement(s) about common deductive forms:

(A) Modus ponens has the form: If p then q; p; therefore q;
(B) Modus tollens has the form: If p then q; not q; therefore not p;
(C) Denying the antecedent (If p then q; not p; therefore not q) is a valid argument form;
(D) Affirming the consequent (If p then q; q; therefore p) is valid in all cases;
(E) In UGC NET symbolic logic, identifying invalid patterns like denying the antecedent is important;
Choose the correct answer from the options given below:

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