| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > breq | Structured version Visualization version GIF version | ||
| Description: Equality theorem for binary relations. (Contributed by NM, 4-Jun-1995.) |
| Ref | Expression |
|---|---|
| breq | ⊢ (𝑅 = 𝑆 → (𝐴𝑅𝐵 ↔ 𝐴𝑆𝐵)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eleq2 2849 | . 2 ⊢ (𝑅 = 𝑆 → (〈𝐴, 𝐵〉 ∈ 𝑅 ↔ 〈𝐴, 𝐵〉 ∈ 𝑆)) | |
| 2 | df-br 5103 | . 2 ⊢ (𝐴𝑅𝐵 ↔ 〈𝐴, 𝐵〉 ∈ 𝑅) | |
| 3 | df-br 5103 | . 2 ⊢ (𝐴𝑆𝐵 ↔ 〈𝐴, 𝐵〉 ∈ 𝑆) | |
| 4 | 1, 2, 3 | 3bitr4g 317 | 1 ⊢ (𝑅 = 𝑆 → (𝐴𝑅𝐵 ↔ 𝐴𝑆𝐵)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ↔ wb 209 = wceq 1569 ∈ wcel 2144 〈cop 4589 class class class wbr 5102 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-ext 2732 |
| This proof depends on definitions: df-bi 210 df-an 402 df-ex 1812 df-cleq 2752 df-clel 2835 df-br 5103 |
| This theorem is used by: breqi 5108 breqd 5113 poeq1 5561 soeq1 5579 freq1 5617 fveq1 6884 foeqcnvco 7308 f1eqcocnv 7309 isoeq2 7326 isoeq3 7327 eqfunresadj 7370 brfvopab 7477 ofreq 7697 cureq 8889 supeq3 9441 oieq1 9506 ttrcleq 9710 dcomex 10525 axdc2lem 10526 brdom3 10607 brdom7disj 10610 brdom6disj 10611 dfrtrclrec2 15211 relexpindlem 15216 rtrclind 15218 shftfval 15223 isprs 18470 isdrs 18475 ispos 18488 istos 18590 resspos 18603 chneq1 18786 efglem 19930 frgpuplem 19986 ordtval 23507 utop2nei 24569 utop3cls 24570 isucn2 24597 ucnima 24599 iducn 24601 ex-opab 31033 acycgr0v 35913 prclisacycgr 35916 satf 36118 poimirlem31 38570 poimir 38572 cosseq 39449 elrefrels3 39532 elcnvrefrels3 39548 elsymrels3 39571 elsymrels5 39573 eltrrels3 39597 eleqvrels3 39610 brabsb2 39920 rfovfvd 45002 fsovrfovd 45009 relpeq2 45935 relpeq3 45936 sprsymrelf 48577 sprsymrelfo 48579 upwlkbprop 49236 |
| Copyright terms: Public domain | W3C validator |