| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > eqtr3 | Structured version Visualization version GIF version | ||
| Description: A transitive law for class equality. (Contributed by NM, 20-May-2005.) (Proof shortened by Wolf Lammen, 24-Oct-2024.) |
| Ref | Expression |
|---|---|
| eqtr3 | ⊢ ((𝐴 = 𝐶 ∧ 𝐵 = 𝐶) → 𝐴 = 𝐵) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eqeq2 2774 | . 2 ⊢ (𝐵 = 𝐶 → (𝐴 = 𝐵 ↔ 𝐴 = 𝐶)) | |
| 2 | 1 | biimparc 483 | 1 ⊢ ((𝐴 = 𝐶 ∧ 𝐵 = 𝐶) → 𝐴 = 𝐵) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 399 = wceq 1560 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1815 ax-4 1829 ax-5 1930 ax-6 1987 ax-7 2028 ax-9 2152 ax-ext 2734 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-ex 1800 df-cleq 2754 |
| This theorem is referenced by: neneor 3057 moeq 3670 euind 3687 reuind 3716 disjeq0 4410 ssprsseq 4783 mosneq 4800 prnebg 4814 prnesn 4818 prel12g 4822 3elpr2eq 4864 eusv1 5348 axprglem 5393 xpcan 6162 xpcan2 6163 funopg 6555 funopdmsn 7133 funsndifnop 7134 fvf1pr 7291 resf1extb 7915 wfr3g 8300 oawordeulem 8523 nnasmo 8633 en1eqsn 9219 ixpfi2 9293 frr3g 9714 isf32lem2 10311 fpwwe2lem12 10600 1re 11181 receu 11832 xrlttri 13141 injresinjlem 13796 fsumparts 15834 odd2np1 16375 prmreclem2 16953 divsfval 17577 isprs 18328 psrn 18607 grpinveu 19016 symgextf1 19461 symgfixf1 19477 efgrelexlemb 19790 lspextmo 21120 evlseu 22133 tgcmp 23458 sqf11 27200 dchrisumlem2 27551 ltssolem1 27736 nocvxminlem 27844 divsmo 28274 axlowdimlem15 29154 axcontlem2 29163 wlksoneq1eq2 29860 spthonepeq 29949 uspgrn2crct 30005 wwlksnextinj 30096 frgrwopreglem5lem 30519 numclwwlk1lem2f1 30556 nsnlplig 30681 nsnlpligALT 30682 grpoinveu 30719 5oalem4 31857 rnbra 32307 xreceu 33096 bnj594 35204 bnj953 35231 fnsingle 36264 funimage 36273 funtransport 36378 funray 36487 funline 36489 hilbert1.2 36502 lineintmo 36504 bj-bary1 37801 poimirlem13 38129 poimirlem14 38130 poimirlem17 38133 poimirlem27 38143 mopre 38967 sucmapleftuniq 38986 antisymressn 39030 disjdmqscossss 39402 prter2 39502 cdleme 41181 rediveud 43049 kelac2lem 43638 frege124d 44334 2ffzoeq 47919 sprsymrelf1lem 48094 paireqne 48114 usgrexmpl2trifr 48656 gpg5grlic 48713 pgnbgreunbgrlem2 48736 mof0ALT 49458 mofsn 49462 f1omoOLD 49512 oppcendc 49636 |
| Copyright terms: Public domain | W3C validator |