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Metamath Proof Explorer

Theorem idiVD

Description: Virtual deduction proof of idiALT . The following user's proof is completed by invoking mmj2's unify command and using mmj2's StepSelector to pick all remaining steps of the Metamath proof.

h1::	\|- ph
qed:1,?: e0a	\|- ph

(Contributed by Alan Sare, 31-Dec-2011) (Proof modification is discouraged.) (New usage is discouraged.)

		Ref	Expression
	Hypothesis	idiVD.1	$⊢ φ$
	Assertion	idiVD	$⊢ φ$

Proof

Step	Hyp	Ref	Expression
1		idiVD.1	$⊢ φ$
2		id	$⊢ φ \to φ$
3	1 2	e0a	$⊢ φ$