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Q. Wedge symbol denotes ________ function.

Q. ‘It is not the case that Ramesh is honest’ is symbolised as ------

Q. If x) Mx is true, then (∃ x) Mx is …………………

Q. Name the rule of inference ( P Ͻ q ) ≡ Q Ͻ P )

Q. The statement form with only false substitution instances is called _________.

Q. The negation of a true statement is ---------

Q. A simple proposition is ………………………………………………………………….

Q. In _______ proposition, two simple propositions are combined by ‘either -- or’.

Q. The symbol _________ indicates material equivalence.

Q. Obversion is a valid __________inference, when applied to any standard form categorical proposition.