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| Mirrors > Home > ILE Home > Th. List > breqtrdi | 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 2238 | . 2 ⊢ 𝐴 = 𝐴 | |
| 3 | breqtrdi.2 | . 2 ⊢ 𝐵 = 𝐶 | |
| 4 | 1, 2, 3 | 3brtr3g 4163 | 1 ⊢ (𝜑 → 𝐴𝑅𝐶) |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: → wi 4 = wceq 1402 class class class wbr 4130 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-ext 2220 |
| This proof depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-nf 1514 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-v 2823 df-un 3224 df-sn 3715 df-pr 3716 df-op 3718 df-br 4131 |
| This theorem is used by: breqtrrdi 4172 en2eleq 7547 en2other2 7548 dju0en 7570 ltm1sr 8144 maxle2 11978 xrmax2sup 12020 mertenslem2 12303 ege2le3 12438 cos01gt0 12530 sin02gt0 12531 cos12dec 12535 bitsfzolem 12721 bitsmod 12723 unennn 13288 dvef 15828 sin0pilem2 15883 cosq23lt0 15934 cosq34lt1 15951 cos02pilt1 15952 logbgcd1irraplemexp 16070 pellexlem2 16092 lgslem3 16121 lgsquadlem1 16196 lgsquadlem3 16198 trilpolemeq1 17089 |
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