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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 2763 | . 2 ⊢ 𝐷 = 𝐴 |
| 4 | 3eqtr4i.2 | . 2 ⊢ 𝐶 = 𝐴 | |
| 5 | 3, 4 | eqtr4i 2763 | 1 ⊢ 𝐷 = 𝐶 |
| Colors of variables: wff setvar class |
| Syntax hints: = 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 2709 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-ex 1782 df-cleq 2729 |
| This theorem is referenced by: cbvreucsf 3882 dfin3 4218 dfsymdif3 4247 rabdif 4262 dfif6 4470 dfsn2ALT 4590 qdass 4698 tpidm12 4700 iinvdif 5023 unidif0 5298 csbcnv 5833 dfdm4 5845 dmun 5860 resres 5952 inres 5957 resdifcom 5958 resiun1 5959 imainrect 6140 cnvcnv 6151 coundi 6206 coundir 6207 funopg 6527 csbov 7406 elrnmpores 7499 offres 7930 1st2val 7964 2nd2val 7965 mpomptsx 8011 oeoalem 8526 omopthlem1 8589 snec 8719 tcsni 9656 infmap2 10133 ackbij2lem3 10156 itunisuc 10335 axmulass 11074 divmul13i 11910 dfnn3 12182 numsucc 12678 decbin2 12779 uzrdgxfr 13923 hashxplem 14389 prprrab 14429 ids1 14554 s3s4 14889 s2s5 14890 s5s2 14891 fsumadd 15696 fsum2d 15727 fprodmul 15919 bpoly3 16017 bezout 16506 oppchomf 17680 dfinito3 17966 dftermo3 17967 smndex1iidm 18863 symgbas 19341 oppr1 20324 opsrtoslem1 22046 m2detleiblem2 22606 txswaphmeolem 23782 cnfldnm 24756 cnrbas 25122 cnnm 25140 volres 25508 voliunlem1 25530 uniioombllem4 25566 itg11 25671 dfrelog 26545 log2ublem3 26928 bposlem8 27271 noinfbnd2 27712 addsasslem1 28012 bdaypw2n0bndlem 28472 uhgrspan1 29389 ip2i 30917 bcseqi 31209 hilnormi 31252 cmcmlem 31680 fh3i 31712 fh4i 31713 pjadjii 31763 resf1o 32821 dp3mul10 32975 dpmul4 32991 threehalves 32992 ressplusf 33041 cycpmconjs 33235 resvsca 33410 cos9thpiminplylem5 33949 xpinpreima 34069 cnre2csqima 34074 esum2dlem 34255 eulerpartgbij 34535 ballotth 34701 plymulx 34711 hgt750lem2 34815 elrn3 35963 itg2addnclem2 38010 dfsucmap3 38801 dfsucmap4 38803 dfcoss3 38842 cossid 38908 dfssr2 38917 dfpetparts2 39310 dfpeters2 39312 areaquad 43665 cnvrcl0 44073 stoweidlem13 46462 wallispi2 46522 fourierdlem96 46651 fourierdlem97 46652 fourierdlem98 46653 fourierdlem99 46654 fourierdlem113 46668 fourierswlem 46679 dfafv2 47595 dfnelbr2 47736 ceil5half3 47809 fmtnorec2 48021 fmtno5fac 48060 tposrescnv 49369 tposres3 49371 dfswapf2 49751 setrec2 50185 |
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