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| Mirrors > Home > ILE Home > Th. List > oveq1d | GIF version | ||
| Description: Equality deduction for operation value. (Contributed by NM, 13-Mar-1995.) | 
| Ref | Expression | 
|---|---|
| oveq1d.1 | ⊢ (𝜑 → 𝐴 = 𝐵) | 
| Ref | Expression | 
|---|---|
| oveq1d | ⊢ (𝜑 → (𝐴𝐹𝐶) = (𝐵𝐹𝐶)) | 
| Step | Hyp | Ref | Expression | 
|---|---|---|---|
| 1 | oveq1d.1 | . 2 ⊢ (𝜑 → 𝐴 = 𝐵) | |
| 2 | oveq1 5929 | . 2 ⊢ (𝐴 = 𝐵 → (𝐴𝐹𝐶) = (𝐵𝐹𝐶)) | |
| 3 | 1, 2 | syl 14 | 1 ⊢ (𝜑 → (𝐴𝐹𝐶) = (𝐵𝐹𝐶)) | 
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