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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 2762 | . 2 ⊢ 𝐷 = 𝐴 |
| 4 | 3eqtr4i.2 | . 2 ⊢ 𝐶 = 𝐴 | |
| 5 | 3, 4 | eqtr4i 2762 | 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 2708 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-ex 1781 df-cleq 2728 |
| This theorem is referenced by: cbvreucsf 3893 dfin3 4229 dfsymdif3 4258 rabdif 4273 dfif6 4482 dfsn2ALT 4602 qdass 4710 tpidm12 4712 iinvdif 5035 unidif0 5305 csbcnv 5832 dfdm4 5844 dmun 5859 resres 5951 inres 5956 resdifcom 5957 resiun1 5958 imainrect 6139 cnvcnv 6150 coundi 6205 coundir 6206 funopg 6526 csbov 7403 elrnmpores 7496 offres 7927 1st2val 7961 2nd2val 7962 mpomptsx 8008 oeoalem 8524 omopthlem1 8587 snec 8715 tcsni 9650 infmap2 10127 ackbij2lem3 10150 itunisuc 10329 axmulass 11068 divmul13i 11902 dfnn3 12159 numsucc 12647 decbin2 12748 uzrdgxfr 13890 hashxplem 14356 prprrab 14396 ids1 14521 s3s4 14856 s2s5 14857 s5s2 14858 fsumadd 15663 fsum2d 15694 fprodmul 15883 bpoly3 15981 bezout 16470 oppchomf 17643 dfinito3 17929 dftermo3 17930 smndex1iidm 18826 symgbas 19301 oppr1 20286 opsrtoslem1 22010 m2detleiblem2 22572 txswaphmeolem 23748 cnfldnm 24722 cnrbas 25098 cnnm 25116 volres 25485 voliunlem1 25507 uniioombllem4 25543 itg11 25648 dfrelog 26530 log2ublem3 26914 bposlem8 27258 noinfbnd2 27699 addsasslem1 27999 bdaypw2n0bndlem 28459 uhgrspan1 29376 ip2i 30903 bcseqi 31195 hilnormi 31238 cmcmlem 31666 fh3i 31698 fh4i 31699 pjadjii 31749 resf1o 32809 dp3mul10 32979 dpmul4 32995 threehalves 32996 ressplusf 33045 cycpmconjs 33238 resvsca 33413 cos9thpiminplylem5 33943 xpinpreima 34063 cnre2csqima 34068 esum2dlem 34249 eulerpartgbij 34529 ballotth 34695 plymulx 34705 hgt750lem2 34809 elrn3 35956 itg2addnclem2 37873 dfsucmap3 38637 dfsucmap4 38639 dfcoss3 38677 cossid 38743 dfssr2 38752 dfblockliftfix2 38897 areaquad 43458 cnvrcl0 43866 stoweidlem13 46257 wallispi2 46317 fourierdlem96 46446 fourierdlem97 46447 fourierdlem98 46448 fourierdlem99 46449 fourierdlem113 46463 fourierswlem 46474 dfafv2 47378 dfnelbr2 47519 ceil5half3 47586 fmtnorec2 47789 fmtno5fac 47828 tposrescnv 49124 tposres3 49126 dfswapf2 49506 setrec2 49940 |
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