| 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 2748 | . 2 ⊢ (𝐵 = 𝐶 → (𝐴 = 𝐵 ↔ 𝐴 = 𝐶)) | |
| 2 | 1 | biimparc 479 | 1 ⊢ ((𝐴 = 𝐶 ∧ 𝐵 = 𝐶) → 𝐴 = 𝐵) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 395 = wceq 1542 |
| 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 1912 ax-6 1969 ax-7 2010 ax-9 2124 ax-ext 2708 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-ex 1782 df-cleq 2728 |
| This theorem is referenced by: neneor 3032 moeq 3653 euind 3670 reuind 3699 disjeq0 4396 ssprsseq 4768 mosneq 4785 prnebg 4799 prnesn 4803 prel12g 4807 3elpr2eq 4849 eusv1 5333 axprglem 5378 xpcan 6140 xpcan2 6141 funopg 6532 funopdmsn 7104 funsndifnop 7105 fvf1pr 7262 resf1extb 7885 wfr3g 8269 oawordeulem 8489 nnasmo 8599 en1eqsn 9185 ixpfi2 9260 frr3g 9680 isf32lem2 10276 fpwwe2lem12 10565 1re 11144 receu 11795 xrlttri 13090 injresinjlem 13745 fsumparts 15769 odd2np1 16310 prmreclem2 16888 divsfval 17511 isprs 18262 psrn 18541 grpinveu 18950 symgextf1 19396 symgfixf1 19412 efgrelexlemb 19725 lspextmo 21051 evlseu 22061 tgcmp 23366 sqf11 27102 dchrisumlem2 27453 ltssolem1 27639 nocvxminlem 27746 divsmo 28176 axlowdimlem15 29025 axcontlem2 29034 wlksoneq1eq2 29731 spthonepeq 29820 uspgrn2crct 29876 wwlksnextinj 29967 frgrwopreglem5lem 30390 numclwwlk1lem2f1 30427 nsnlplig 30552 nsnlpligALT 30553 grpoinveu 30590 5oalem4 31728 rnbra 32178 xreceu 32981 bnj594 35054 bnj953 35081 fnsingle 36099 funimage 36108 funtransport 36213 funray 36322 funline 36324 hilbert1.2 36337 lineintmo 36339 bj-bary1 37626 poimirlem13 37954 poimirlem14 37955 poimirlem17 37958 poimirlem27 37968 mopre 38792 sucmapleftuniq 38811 antisymressn 38855 disjdmqscossss 39227 prter2 39327 cdleme 41006 rediveud 42875 kelac2lem 43492 frege124d 44188 2ffzoeq 47776 sprsymrelf1lem 47951 paireqne 47971 usgrexmpl2trifr 48513 gpg5grlic 48570 pgnbgreunbgrlem2 48593 mof0ALT 49315 mofsn 49319 f1omoOLD 49369 oppcendc 49493 |
| Copyright terms: Public domain | W3C validator |