(3steps) PrintForm Definitions formula Sections ClassicalProps(jlc) Doc

At: f or wf 1

1. p: Formula
2. q: Formula

pq Formula

By: Unfold `f_or` 0

Generated subgoal:

1 inr(inr(inr(inl( < p,q > )))) Formula

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pairinlinrmember

(3steps) PrintForm Definitions formula Sections ClassicalProps(jlc) Doc