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| Mirrors > Home > ILE Home > Th. List > breqtrrdi | GIF version | ||
| Description: A chained equality inference for a binary relation. (Contributed by NM, 24-Apr-2005.) |
| Ref | Expression |
|---|---|
| breqtrrdi.1 | ⊢ (𝜑 → 𝐴𝑅𝐵) |
| breqtrrdi.2 | ⊢ 𝐶 = 𝐵 |
| Ref | Expression |
|---|---|
| breqtrrdi | ⊢ (𝜑 → 𝐴𝑅𝐶) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | breqtrrdi.1 | . 2 ⊢ (𝜑 → 𝐴𝑅𝐵) | |
| 2 | breqtrrdi.2 | . . 3 ⊢ 𝐶 = 𝐵 | |
| 3 | 2 | eqcomi 2242 | . 2 ⊢ 𝐵 = 𝐶 |
| 4 | 1, 3 | breqtrdi 4172 | 1 ⊢ (𝜑 → 𝐴𝑅𝐶) |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: → wi 4 = wceq 1402 class class class wbr 4131 |
| 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 4132 |
| This theorem is used by: enpr2d 7117 fiunsnnn 7191 exmidpw2en 7225 unsnfi 7232 2omapfi 7326 eninl 7443 eninr 7444 difinfinf 7447 exmidfodomrlemr 7560 exmidfodomrlemrALT 7561 dju1en 7575 djucomen 7578 djuassen 7579 xpdjuen 7580 gtndiv 9751 intqfrac2 10776 uzenom 10882 xrmaxiflemval 12040 ege2le3 12462 eirraplem 12568 bitsfzo 12746 pcprendvds 13097 pcpremul 13100 pcfaclem 13156 infpnlem2 13167 2strstr1g 13534 lmcn2 15523 dveflem 15969 tangtx 16082 ioocosf1o 16099 bposlem1 16328 bposlem2 16329 bposlem3 16330 lgsdirprm 16375 sbthom 17294 nconstwlpolemgt0 17338 |
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