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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 5099 | . 2 ⊢ (𝐴 = 𝐵 → (𝐴𝑅𝐶 ↔ 𝐵𝑅𝐶)) | |
| 2 | breq2 5100 | . 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 1541 class class class wbr 5096 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2115 ax-9 2123 ax-ext 2706 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-sb 2068 df-clab 2713 df-cleq 2726 df-clel 2809 df-rab 3398 df-v 3440 df-dif 3902 df-un 3904 df-ss 3916 df-nul 4284 df-if 4478 df-sn 4579 df-pr 4581 df-op 4585 df-br 5097 |
| This theorem is referenced by: breq12i 5105 breq12d 5109 breqan12d 5112 rbropapd 5508 posn 5708 dfrel4 6147 dfpo2 6252 isopolem 7289 poxp 8068 soxp 8069 fnse 8073 poxp2 8083 poxp3 8090 ecopover 8756 canth2g 9057 ttrclss 9627 ttrclselem2 9633 infxpen 9922 sornom 10185 dcomex 10355 zorn2lem6 10409 brdom6disj 10440 fpwwe2 10552 rankcf 10686 ltresr 11049 ltxrlt 11201 wloglei 11667 ltxr 13027 xrltnr 13031 xrltnsym 13049 xrlttri 13051 xrlttr 13052 brfi1uzind 14429 brfi1indALT 14431 f1olecpbl 17446 isfull 17834 isfth 17838 prslem 18218 pslem 18493 dirtr 18523 xrsdsval 21363 dvcvx 25979 2sqmo 27402 2sqreultblem 27413 2sqreunnltblem 27416 2sqreuopb 27433 slerec 27787 addsproplem2 27940 negsproplem2 27998 recut 28439 elreno2 28440 axcontlem9 28994 isrusgr 29584 wlk2f 29652 istrlson 29727 upgrwlkdvspth 29761 ispthson 29764 isspthson 29765 crctcshwlk 29844 crctcsh 29846 2pthon3v 29965 umgr2wlk 29971 0pthonv 30153 1pthon2v 30177 uhgr3cyclex 30206 brfinext 33758 finextfldext 33770 bralgext 33803 mclsppslem 35726 fununiq 35912 elfix2 36045 poimirlem10 37770 poimirlem11 37771 dvdsexpnn0 42531 monotoddzzfi 43126 or2expropbi 47222 dfatcolem 47443 sprsymrelfolem2 47681 poprelb 47712 cycldlenngric 48116 gpgprismgr4cyclex 48295 lgricngricex 48317 lindepsnlininds 48640 catprslem 49197 |
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