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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 5116 | . 2 ⊢ (𝐴 = 𝐵 → (𝐴𝑅𝐶 ↔ 𝐵𝑅𝐶)) | |
| 2 | breq2 5117 | . 2 ⊢ (𝐶 = 𝐷 → (𝐵𝑅𝐶 ↔ 𝐵𝑅𝐷)) | |
| 3 | 1, 2 | sylan9bb 518 | 1 ⊢ ((𝐴 = 𝐵 ∧ 𝐶 = 𝐷) → (𝐴𝑅𝐶 ↔ 𝐵𝑅𝐷)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 209 ∧ wa 400 = wceq 1567 class class class wbr 5113 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1822 ax-4 1836 ax-5 1937 ax-6 1994 ax-7 2035 ax-8 2151 ax-9 2159 ax-ext 2741 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1103 df-tru 1570 df-fal 1580 df-ex 1807 df-sb 2098 df-clab 2748 df-cleq 2761 df-clel 2844 df-rab 3424 df-v 3465 df-dif 3916 df-un 3918 df-ss 3930 df-nul 4295 df-if 4493 df-sn 4595 df-pr 4597 df-op 4601 df-br 5114 |
| This theorem is referenced by: breq12i 5122 breq12d 5126 breqan12d 5129 rbropapd 5548 posn 5748 dfrel4 6190 dfpo2 6298 isopolem 7344 poxp 8124 soxp 8125 fnse 8129 poxp2 8139 poxp3 8146 ecopover 8819 canth2g 9119 ttrclss 9689 ttrclselem2 9695 infxpen 9998 sornom 10261 dcomex 10431 zorn2lem6 10485 brdom6disj 10516 fpwwe2 10628 rankcf 10762 ltresr 11125 ltxrlt 11280 wloglei 11746 ltxr 13140 xrltnr 13144 xrltnsym 13162 xrlttri 13164 xrlttr 13165 brfi1uzind 14545 brfi1indALT 14547 f1olecpbl 17581 isfull 17969 isfth 17973 prslem 18353 pslem 18628 dirtr 18658 xrsdsval 21530 dvcvx 26148 2sqmo 27567 2sqreultblem 27578 2sqreunnltblem 27581 2sqreuopb 27598 lesrec 27958 addsproplem2 28129 negsproplem2 28188 recut 28653 elreno2 28654 axcontlem9 29263 isrusgr 29852 wlk2f 29920 istrlson 29995 upgrwlkdvspth 30029 ispthson 30032 isspthson 30033 crctcshwlk 30112 crctcsh 30114 2pthon3v 30233 umgr2wlk 30239 0pthonv 30421 1pthon2v 30445 uhgr3cyclex 30474 brfinext 33987 finextfldext 33999 bralgext 34032 mclsppslem 36008 fununiq 36194 elfix2 36327 poimirlem10 38203 poimirlem11 38204 dvdsexpnn0 43019 monotoddzzfi 43595 or2expropbi 47694 dfatcolem 47915 sprsymrelfolem2 48165 poprelb 48196 cycldlenngric 48616 gpgprismgr4cyclex 48795 lgricngricex 48817 lindepsnlininds 49151 catprslem 49707 |
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