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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 5033 | . 2 ⊢ (𝐴 = 𝐵 → (𝐴𝑅𝐶 ↔ 𝐵𝑅𝐶)) | |
2 | breq2 5034 | . 2 ⊢ (𝐶 = 𝐷 → (𝐵𝑅𝐶 ↔ 𝐵𝑅𝐷)) | |
3 | 1, 2 | sylan9bb 513 | 1 ⊢ ((𝐴 = 𝐵 ∧ 𝐶 = 𝐷) → (𝐴𝑅𝐶 ↔ 𝐵𝑅𝐷)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 209 ∧ wa 399 = wceq 1538 class class class wbr 5030 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2113 ax-9 2121 ax-ext 2770 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 845 df-3an 1086 df-ex 1782 df-sb 2070 df-clab 2777 df-cleq 2791 df-clel 2870 df-v 3443 df-un 3886 df-sn 4526 df-pr 4528 df-op 4532 df-br 5031 |
This theorem is referenced by: breq12i 5039 breq12d 5043 breqan12d 5046 rbropapd 5414 posn 5601 dfrel4 6015 isopolem 7077 poxp 7805 soxp 7806 fnse 7810 ecopover 8384 canth2g 8655 infxpen 9425 sornom 9688 dcomex 9858 zorn2lem6 9912 brdom6disj 9943 fpwwe2 10054 rankcf 10188 ltresr 10551 ltxrlt 10700 wloglei 11161 ltxr 12498 xrltnr 12502 xrltnsym 12518 xrlttri 12520 xrlttr 12521 brfi1uzind 13852 brfi1indALT 13854 f1olecpbl 16792 isfull 17172 isfth 17176 prslem 17533 pslem 17808 dirtr 17838 xrsdsval 20135 dvcvx 24623 2sqmo 26021 2sqreultblem 26032 2sqreunnltblem 26035 2sqreuopb 26052 axcontlem9 26766 isrusgr 27351 wlk2f 27419 istrlson 27496 upgrwlkdvspth 27528 ispthson 27531 isspthson 27532 crctcshwlk 27608 crctcsh 27610 2pthon3v 27729 umgr2wlk 27735 0pthonv 27914 1pthon2v 27938 uhgr3cyclex 27967 brfinext 31131 mclsppslem 32943 dfpo2 33104 fununiq 33125 slerec 33390 elfix2 33478 poimirlem10 35067 poimirlem11 35068 factwoffsmonot 39388 monotoddzzfi 39883 or2expropbi 43626 dfatcolem 43811 sprsymrelfolem2 44010 poprelb 44041 lindepsnlininds 44861 |
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