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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 3895 dfin3 4231 dfsymdif3 4260 rabdif 4275 dfif6 4484 dfsn2ALT 4604 qdass 4712 tpidm12 4714 iinvdif 5037 unidif0 5307 csbcnv 5840 dfdm4 5852 dmun 5867 resres 5959 inres 5964 resdifcom 5965 resiun1 5966 imainrect 6147 cnvcnv 6158 coundi 6213 coundir 6214 funopg 6534 csbov 7413 elrnmpores 7506 offres 7937 1st2val 7971 2nd2val 7972 mpomptsx 8018 oeoalem 8534 omopthlem1 8597 snec 8727 tcsni 9662 infmap2 10139 ackbij2lem3 10162 itunisuc 10341 axmulass 11080 divmul13i 11914 dfnn3 12171 numsucc 12659 decbin2 12760 uzrdgxfr 13902 hashxplem 14368 prprrab 14408 ids1 14533 s3s4 14868 s2s5 14869 s5s2 14870 fsumadd 15675 fsum2d 15706 fprodmul 15895 bpoly3 15993 bezout 16482 oppchomf 17655 dfinito3 17941 dftermo3 17942 smndex1iidm 18838 symgbas 19313 oppr1 20298 opsrtoslem1 22022 m2detleiblem2 22584 txswaphmeolem 23760 cnfldnm 24734 cnrbas 25110 cnnm 25128 volres 25497 voliunlem1 25519 uniioombllem4 25555 itg11 25660 dfrelog 26542 log2ublem3 26926 bposlem8 27270 noinfbnd2 27711 addsasslem1 28011 bdaypw2n0bndlem 28471 uhgrspan1 29388 ip2i 30916 bcseqi 31208 hilnormi 31251 cmcmlem 31679 fh3i 31711 fh4i 31712 pjadjii 31762 resf1o 32820 dp3mul10 32990 dpmul4 33006 threehalves 33007 ressplusf 33056 cycpmconjs 33250 resvsca 33425 cos9thpiminplylem5 33964 xpinpreima 34084 cnre2csqima 34089 esum2dlem 34270 eulerpartgbij 34550 ballotth 34716 plymulx 34726 hgt750lem2 34830 elrn3 35978 itg2addnclem2 37923 dfsucmap3 38714 dfsucmap4 38716 dfcoss3 38755 cossid 38821 dfssr2 38830 dfpetparts2 39223 dfpeters2 39225 areaquad 43573 cnvrcl0 43981 stoweidlem13 46371 wallispi2 46431 fourierdlem96 46560 fourierdlem97 46561 fourierdlem98 46562 fourierdlem99 46563 fourierdlem113 46577 fourierswlem 46588 dfafv2 47492 dfnelbr2 47633 ceil5half3 47700 fmtnorec2 47903 fmtno5fac 47942 tposrescnv 49238 tposres3 49240 dfswapf2 49620 setrec2 50054 |
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