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| Mirrors > Home > MPE Home > Th. List > 3eqtr4ri | Structured version Visualization version GIF version | ||
| Description: An inference from three chained equalities. (Contributed by NM, 2-Sep-1995.) (Proof shortened by Andrew Salmon, 25-May-2011.) |
| Ref | Expression |
|---|---|
| 3eqtr4i.1 | ⊢ 𝐴 = 𝐵 |
| 3eqtr4i.2 | ⊢ 𝐶 = 𝐴 |
| 3eqtr4i.3 | ⊢ 𝐷 = 𝐵 |
| Ref | Expression |
|---|---|
| 3eqtr4ri | ⊢ 𝐷 = 𝐶 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 3eqtr4i.3 | . . 3 ⊢ 𝐷 = 𝐵 | |
| 2 | 3eqtr4i.1 | . . 3 ⊢ 𝐴 = 𝐵 | |
| 3 | 1, 2 | eqtr4i 2760 | . 2 ⊢ 𝐷 = 𝐴 |
| 4 | 3eqtr4i.2 | . 2 ⊢ 𝐶 = 𝐴 | |
| 5 | 3, 4 | eqtr4i 2760 | 1 ⊢ 𝐷 = 𝐶 |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1541 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-9 2123 ax-ext 2706 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-ex 1781 df-cleq 2726 |
| This theorem is referenced by: cbvreucsf 3891 dfin3 4227 dfsymdif3 4256 rabdif 4271 dfif6 4480 dfsn2ALT 4600 qdass 4708 tpidm12 4710 iinvdif 5033 unidif0 5303 csbcnv 5830 dfdm4 5842 dmun 5857 resres 5949 inres 5954 resdifcom 5955 resiun1 5956 imainrect 6137 cnvcnv 6148 coundi 6203 coundir 6204 funopg 6524 csbov 7401 elrnmpores 7494 offres 7925 1st2val 7959 2nd2val 7960 mpomptsx 8006 oeoalem 8522 omopthlem1 8585 snec 8713 tcsni 9648 infmap2 10125 ackbij2lem3 10148 itunisuc 10327 axmulass 11066 divmul13i 11900 dfnn3 12157 numsucc 12645 decbin2 12746 uzrdgxfr 13888 hashxplem 14354 prprrab 14394 ids1 14519 s3s4 14854 s2s5 14855 s5s2 14856 fsumadd 15661 fsum2d 15692 fprodmul 15881 bpoly3 15979 bezout 16468 oppchomf 17641 dfinito3 17927 dftermo3 17928 smndex1iidm 18824 symgbas 19299 oppr1 20284 opsrtoslem1 22008 m2detleiblem2 22570 txswaphmeolem 23746 cnfldnm 24720 cnrbas 25096 cnnm 25114 volres 25483 voliunlem1 25505 uniioombllem4 25541 itg11 25646 dfrelog 26528 log2ublem3 26912 bposlem8 27256 noinfbnd2 27697 addsasslem1 27973 bdaypw2n0s 28420 uhgrspan1 29325 ip2i 30852 bcseqi 31144 hilnormi 31187 cmcmlem 31615 fh3i 31647 fh4i 31648 pjadjii 31698 resf1o 32758 dp3mul10 32928 dpmul4 32944 threehalves 32945 ressplusf 32994 cycpmconjs 33187 resvsca 33362 cos9thpiminplylem5 33892 xpinpreima 34012 cnre2csqima 34017 esum2dlem 34198 eulerpartgbij 34478 ballotth 34644 plymulx 34654 hgt750lem2 34758 elrn3 35905 itg2addnclem2 37812 dfsucmap3 38576 dfsucmap4 38578 dfcoss3 38616 cossid 38682 dfssr2 38691 dfblockliftfix2 38836 areaquad 43400 cnvrcl0 43808 stoweidlem13 46199 wallispi2 46259 fourierdlem96 46388 fourierdlem97 46389 fourierdlem98 46390 fourierdlem99 46391 fourierdlem113 46405 fourierswlem 46416 dfafv2 47320 dfnelbr2 47461 ceil5half3 47528 fmtnorec2 47731 fmtno5fac 47770 tposrescnv 49066 tposres3 49068 dfswapf2 49448 setrec2 49882 |
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