| 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 2781 | . 2 ⊢ (𝐵 = 𝐶 → (𝐴 = 𝐵 ↔ 𝐴 = 𝐶)) | |
| 2 | 1 | biimparc 484 | 1 ⊢ ((𝐴 = 𝐶 ∧ 𝐵 = 𝐶) → 𝐴 = 𝐵) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 400 = wceq 1567 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1822 ax-4 1836 ax-5 1937 ax-6 1994 ax-7 2035 ax-9 2159 ax-ext 2741 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-ex 1807 df-cleq 2761 |
| This theorem is referenced by: neneor 3066 moeq 3679 euind 3696 reuind 3725 disjeq0 4422 ssprsseq 4795 mosneq 4811 prnebg 4825 prnesn 4829 prel12g 4833 3elpr2eq 4875 eusv1 5363 axprglem 5408 xpcan 6175 xpcan2 6176 funopg 6571 funopdmsn 7148 funsndifnop 7149 fvf1pr 7306 resf1extb 7930 wfr3g 8315 oawordeulem 8538 nnasmo 8648 en1eqsn 9234 ixpfi2 9306 frr3g 9727 isf32lem2 10337 fpwwe2lem12 10626 1re 11207 receu 11858 xrlttri 13163 injresinjlem 13818 fsumparts 15857 odd2np1 16398 prmreclem2 16976 divsfval 17600 isprs 18351 psrn 18630 grpinveu 19040 symgextf1 19490 symgfixf1 19506 efgrelexlemb 19819 lspextmo 21154 evlseu 22202 tgcmp 23526 sqf11 27268 dchrisumlem2 27619 ltssolem1 27804 nocvxminlem 27912 divsmo 28342 axlowdimlem15 29246 axcontlem2 29255 wlksoneq1eq2 29952 spthonepeq 30041 uspgrn2crct 30097 wwlksnextinj 30188 frgrwopreglem5lem 30611 numclwwlk1lem2f1 30648 nsnlplig 30773 nsnlpligALT 30774 grpoinveu 30811 5oalem4 31949 rnbra 32399 xreceu 33181 bnj594 35244 bnj953 35271 fnsingle 36307 funimage 36316 funtransport 36421 funray 36530 funline 36532 hilbert1.2 36545 lineintmo 36547 bj-bary1 37843 poimirlem13 38171 poimirlem14 38172 poimirlem17 38175 poimirlem27 38185 mopre 39009 sucmapleftuniq 39028 antisymressn 39072 disjdmqscossss 39444 prter2 39544 cdleme 41223 rediveud 43093 kelac2lem 43682 frege124d 44378 2ffzoeq 47953 sprsymrelf1lem 48128 paireqne 48148 usgrexmpl2trifr 48690 gpg5grlic 48747 pgnbgreunbgrlem2 48770 mof0ALT 49502 mofsn 49506 f1omoOLD 49556 oppcendc 49680 |
| Copyright terms: Public domain | W3C validator |