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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 5550 posn 5750 dfrel4 6192 dfpo2 6300 isopolem 7346 poxp 8126 soxp 8127 fnse 8131 poxp2 8141 poxp3 8148 ecopover 8821 canth2g 9121 ttrclss 9691 ttrclselem2 9697 infxpen 10000 sornom 10263 dcomex 10433 zorn2lem6 10487 brdom6disj 10518 fpwwe2 10630 rankcf 10764 ltresr 11127 ltxrlt 11282 wloglei 11748 ltxr 13142 xrltnr 13146 xrltnsym 13164 xrlttri 13166 xrlttr 13167 brfi1uzind 14547 brfi1indALT 14549 f1olecpbl 17583 isfull 17971 isfth 17975 prslem 18355 pslem 18630 dirtr 18660 xrsdsval 21532 dvcvx 26150 2sqmo 27569 2sqreultblem 27580 2sqreunnltblem 27583 2sqreuopb 27600 lesrec 27960 addsproplem2 28131 negsproplem2 28190 recut 28655 elreno2 28656 axcontlem9 29265 isrusgr 29854 wlk2f 29922 istrlson 29997 upgrwlkdvspth 30031 ispthson 30034 isspthson 30035 crctcshwlk 30114 crctcsh 30116 2pthon3v 30235 umgr2wlk 30241 0pthonv 30423 1pthon2v 30447 uhgr3cyclex 30476 brfinext 33989 finextfldext 34001 bralgext 34034 mclsppslem 36010 fununiq 36196 elfix2 36329 poimirlem10 38206 poimirlem11 38207 dvdsexpnn0 43022 monotoddzzfi 43598 or2expropbi 47697 dfatcolem 47918 sprsymrelfolem2 48168 poprelb 48199 cycldlenngric 48619 gpgprismgr4cyclex 48798 lgricngricex 48820 lindepsnlininds 49154 catprslem 49710 |
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