Theorem iddii

Description: Version of a1ii with the hypotheses switched. The first hypothesis is redundant so this theorem should not normally appear in a proof. Inference associated with idd . (Contributed by SN, 1-Apr-2025) (New usage is discouraged.)

	Ref	Expression
Hypotheses	iddii.1	$$⊢\phi$$
	iddii.2	$$⊢\psi$$
Assertion	iddii	$$⊢\psi$$

Proof

Step	Hyp	Ref	Expression
1		iddii.1	$$⊢\phi$$
2		iddii.2	$$⊢\psi$$