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 | ⊢ 𝜑 | |
iddii.2 | ⊢ 𝜓 | ||
Assertion | iddii | ⊢ 𝜓 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | iddii.1 | ⊢ 𝜑 | |
2 | iddii.2 | ⊢ 𝜓 |