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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 5105 | . 2 ⊢ (𝐴 = 𝐵 → (𝐴𝑅𝐶 ↔ 𝐵𝑅𝐶)) | |
| 2 | breq2 5106 | . 2 ⊢ (𝐶 = 𝐷 → (𝐵𝑅𝐶 ↔ 𝐵𝑅𝐷)) | |
| 3 | 1, 2 | sylan9bb 517 | 1 ⊢ ((𝐴 = 𝐵 ∧ 𝐶 = 𝐷) → (𝐴𝑅𝐶 ↔ 𝐵𝑅𝐷)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 208 ∧ wa 399 = wceq 1562 class class class wbr 5102 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1817 ax-4 1831 ax-5 1932 ax-6 1989 ax-7 2030 ax-8 2146 ax-9 2154 ax-ext 2736 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3an 1101 df-tru 1565 df-fal 1575 df-ex 1802 df-sb 2093 df-clab 2743 df-cleq 2756 df-clel 2839 df-rab 3417 df-v 3458 df-dif 3909 df-un 3911 df-ss 3923 df-nul 4288 df-if 4483 df-sn 4585 df-pr 4587 df-op 4591 df-br 5103 |
| This theorem is referenced by: breq12i 5111 breq12d 5115 breqan12d 5118 rbropapd 5535 posn 5735 dfrel4 6179 dfpo2 6285 isopolem 7331 poxp 8110 soxp 8111 fnse 8115 poxp2 8125 poxp3 8132 ecopover 8805 canth2g 9105 ttrclss 9677 ttrclselem2 9683 infxpen 9972 sornom 10236 dcomex 10406 zorn2lem6 10460 brdom6disj 10491 fpwwe2 10603 rankcf 10737 ltresr 11100 ltxrlt 11255 wloglei 11721 ltxr 13119 xrltnr 13123 xrltnsym 13141 xrlttri 13143 xrlttr 13144 brfi1uzind 14523 brfi1indALT 14525 f1olecpbl 17559 isfull 17947 isfth 17951 prslem 18331 pslem 18606 dirtr 18636 xrsdsval 21465 dvcvx 26084 2sqmo 27503 2sqreultblem 27514 2sqreunnltblem 27517 2sqreuopb 27534 lesrec 27894 addsproplem2 28065 negsproplem2 28124 recut 28589 elreno2 28590 axcontlem9 29175 isrusgr 29764 wlk2f 29832 istrlson 29907 upgrwlkdvspth 29941 ispthson 29944 isspthson 29945 crctcshwlk 30024 crctcsh 30026 2pthon3v 30145 umgr2wlk 30151 0pthonv 30333 1pthon2v 30357 uhgr3cyclex 30386 brfinext 33951 finextfldext 33963 bralgext 33996 mclsppslem 35938 fununiq 36124 elfix2 36257 poimirlem10 38134 poimirlem11 38135 dvdsexpnn0 42948 monotoddzzfi 43524 or2expropbi 47633 dfatcolem 47854 sprsymrelfolem2 48104 poprelb 48135 cycldlenngric 48555 gpgprismgr4cyclex 48734 lgricngricex 48756 lindepsnlininds 49079 catprslem 49636 |
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