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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 5078 | . 2 ⊢ (𝐴 = 𝐵 → (𝐴𝑅𝐶 ↔ 𝐵𝑅𝐶)) | |
| 2 | breq2 5079 | . 2 ⊢ (𝐶 = 𝐷 → (𝐵𝑅𝐶 ↔ 𝐵𝑅𝐷)) | |
| 3 | 1, 2 | sylan9bb 515 | 1 ⊢ ((𝐴 = 𝐵 ∧ 𝐶 = 𝐷) → (𝐴𝑅𝐶 ↔ 𝐵𝑅𝐷)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 208 ∧ wa 397 = wceq 1548 class class class wbr 5075 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1803 ax-4 1817 ax-5 1918 ax-6 1975 ax-7 2016 ax-8 2123 ax-9 2131 ax-ext 2713 |
| This theorem depends on definitions: df-bi 209 df-an 398 df-or 855 df-3an 1095 df-tru 1551 df-fal 1561 df-ex 1788 df-sb 2075 df-clab 2720 df-cleq 2733 df-clel 2816 df-rab 3394 df-v 3435 df-dif 3888 df-un 3890 df-ss 3902 df-nul 4265 df-if 4458 df-sn 4559 df-pr 4561 df-op 4565 df-br 5076 |
| This theorem is referenced by: breq12i 5084 breq12d 5088 breqan12d 5091 rbropapd 5507 posn 5707 dfrel4 6146 dfpo2 6251 isopolem 7293 poxp 8072 soxp 8073 fnse 8077 poxp2 8087 poxp3 8094 ecopover 8762 canth2g 9063 ttrclss 9636 ttrclselem2 9642 infxpen 9931 sornom 10194 dcomex 10364 zorn2lem6 10418 brdom6disj 10449 fpwwe2 10561 rankcf 10695 ltresr 11058 ltxrlt 11211 wloglei 11677 ltxr 13061 xrltnr 13065 xrltnsym 13083 xrlttri 13085 xrlttr 13086 brfi1uzind 14465 brfi1indALT 14467 f1olecpbl 17486 isfull 17874 isfth 17878 prslem 18258 pslem 18533 dirtr 18563 xrsdsval 21390 dvcvx 26009 2sqmo 27422 2sqreultblem 27433 2sqreunnltblem 27436 2sqreuopb 27453 lesrec 27813 addsproplem2 27984 negsproplem2 28043 recut 28508 elreno2 28509 axcontlem9 29063 isrusgr 29652 wlk2f 29720 istrlson 29795 upgrwlkdvspth 29829 ispthson 29832 isspthson 29833 crctcshwlk 29912 crctcsh 29914 2pthon3v 30033 umgr2wlk 30039 0pthonv 30221 1pthon2v 30245 uhgr3cyclex 30274 brfinext 33848 finextfldext 33860 bralgext 33893 mclsppslem 35826 fununiq 36012 elfix2 36145 poimirlem10 38012 poimirlem11 38013 dvdsexpnn0 42826 monotoddzzfi 43402 or2expropbi 47511 dfatcolem 47732 sprsymrelfolem2 47982 poprelb 48013 cycldlenngric 48433 gpgprismgr4cyclex 48612 lgricngricex 48634 lindepsnlininds 48957 catprslem 49514 |
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