Introduce previously proved theorem as hypothesis

Question

Suppose that I have already proved some theorem in coq, and later I want to introduce it as a hypothesis in the proof of another theorem. Is there a succinct way to do this?

Answer 1

You can use pose proof theorem_name as X., where X is the name you want to introduce.

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If you're going to destruct it right away, you can also: destruct (decide_eq_nat x y).