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Mirrors > Home > ILE Home > Th. List > oveq2i | GIF version |
Description: Equality inference for operation value. (Contributed by NM, 28-Feb-1995.) |
Ref | Expression |
---|---|
oveq1i.1 | ⊢ 𝐴 = 𝐵 |
Ref | Expression |
---|---|
oveq2i | ⊢ (𝐶𝐹𝐴) = (𝐶𝐹𝐵) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | oveq1i.1 | . 2 ⊢ 𝐴 = 𝐵 | |
2 | oveq2 5850 | . 2 ⊢ (𝐴 = 𝐵 → (𝐶𝐹𝐴) = (𝐶𝐹𝐵)) | |
3 | 1, 2 | ax-mp 5 | 1 ⊢ (𝐶𝐹𝐴) = (𝐶𝐹𝐵) |
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