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| Mirrors > Home > MPE Home > Th. List > breq12 | Structured version Visualization version GIF version | ||
| Description: Equality theorem for a binary relation. (Contributed by NM, 8-Feb-1996.) |
| Ref | Expression |
|---|---|
| breq12 | ⊢ ((𝐴 = 𝐵 ∧ 𝐶 = 𝐷) → (𝐴𝑅𝐶 ↔ 𝐵𝑅𝐷)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | breq1 5102 | . 2 ⊢ (𝐴 = 𝐵 → (𝐴𝑅𝐶 ↔ 𝐵𝑅𝐶)) | |
| 2 | breq2 5103 | . 2 ⊢ (𝐶 = 𝐷 → (𝐵𝑅𝐶 ↔ 𝐵𝑅𝐷)) | |
| 3 | 1, 2 | sylan9bb 509 | 1 ⊢ ((𝐴 = 𝐵 ∧ 𝐶 = 𝐷) → (𝐴𝑅𝐶 ↔ 𝐵𝑅𝐷)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 206 ∧ wa 395 = wceq 1542 class class class wbr 5099 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-ext 2709 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-sb 2069 df-clab 2716 df-cleq 2729 df-clel 2812 df-rab 3401 df-v 3443 df-dif 3905 df-un 3907 df-ss 3919 df-nul 4287 df-if 4481 df-sn 4582 df-pr 4584 df-op 4588 df-br 5100 |
| This theorem is referenced by: breq12i 5108 breq12d 5112 breqan12d 5115 rbropapd 5511 posn 5711 dfrel4 6150 dfpo2 6255 isopolem 7293 poxp 8072 soxp 8073 fnse 8077 poxp2 8087 poxp3 8094 ecopover 8762 canth2g 9063 ttrclss 9633 ttrclselem2 9639 infxpen 9928 sornom 10191 dcomex 10361 zorn2lem6 10415 brdom6disj 10446 fpwwe2 10558 rankcf 10692 ltresr 11055 ltxrlt 11207 wloglei 11673 ltxr 13033 xrltnr 13037 xrltnsym 13055 xrlttri 13057 xrlttr 13058 brfi1uzind 14435 brfi1indALT 14437 f1olecpbl 17452 isfull 17840 isfth 17844 prslem 18224 pslem 18499 dirtr 18529 xrsdsval 21369 dvcvx 25985 2sqmo 27408 2sqreultblem 27419 2sqreunnltblem 27422 2sqreuopb 27439 lesrec 27799 addsproplem2 27970 negsproplem2 28029 recut 28494 elreno2 28495 axcontlem9 29049 isrusgr 29639 wlk2f 29707 istrlson 29782 upgrwlkdvspth 29816 ispthson 29819 isspthson 29820 crctcshwlk 29899 crctcsh 29901 2pthon3v 30020 umgr2wlk 30026 0pthonv 30208 1pthon2v 30232 uhgr3cyclex 30261 brfinext 33811 finextfldext 33823 bralgext 33856 mclsppslem 35779 fununiq 35965 elfix2 36098 poimirlem10 37833 poimirlem11 37834 dvdsexpnn0 42656 monotoddzzfi 43251 or2expropbi 47347 dfatcolem 47568 sprsymrelfolem2 47806 poprelb 47837 cycldlenngric 48241 gpgprismgr4cyclex 48420 lgricngricex 48442 lindepsnlininds 48765 catprslem 49322 |
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