Formal proof of Validity | Rules of Inference

Formal proof of validity is not a mechanical process it is a decision procedure. There are Twenty-three rules of inference which help in constructing formal proof of validity.
Nine elementary valid argument forms.
Ten logical equivalences
Four rules governing instantiation and generalization in quantified logic.
#FormalLogic

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Can you make a video on predicate and model logic!

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[@loveofwisdom1212]

Uploaded.

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