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| Mirrors > Home > MPE Home > Th. List > breqtrdi | Structured version Visualization version GIF version | ||
| Description: A chained equality inference for a binary relation. (Contributed by NM, 11-Oct-1999.) |
| Ref | Expression |
|---|---|
| breqtrdi.1 | ⊢ (𝜑 → 𝐴𝑅𝐵) |
| breqtrdi.2 | ⊢ 𝐵 = 𝐶 |
| Ref | Expression |
|---|---|
| breqtrdi | ⊢ (𝜑 → 𝐴𝑅𝐶) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | breqtrdi.1 | . 2 ⊢ (𝜑 → 𝐴𝑅𝐵) | |
| 2 | eqid 2734 | . 2 ⊢ 𝐴 = 𝐴 | |
| 3 | breqtrdi.2 | . 2 ⊢ 𝐵 = 𝐶 | |
| 4 | 1, 2, 3 | 3brtr3g 5158 | 1 ⊢ (𝜑 → 𝐴𝑅𝐶) |
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