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| Mirrors > Home > ILE Home > Th. List > eleqtrd | GIF version | ||
| Description: Deduction that substitutes equal classes into membership. (Contributed by NM, 14-Dec-2004.) |
| Ref | Expression |
|---|---|
| eleqtrd.1 | ⊢ (𝜑 → 𝐴 ∈ 𝐵) |
| eleqtrd.2 | ⊢ (𝜑 → 𝐵 = 𝐶) |
| Ref | Expression |
|---|---|
| eleqtrd | ⊢ (𝜑 → 𝐴 ∈ 𝐶) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eleqtrd.1 | . 2 ⊢ (𝜑 → 𝐴 ∈ 𝐵) | |
| 2 | eleqtrd.2 | . . 3 ⊢ (𝜑 → 𝐵 = 𝐶) | |
| 3 | 2 | eleq2d 2301 | . 2 ⊢ (𝜑 → (𝐴 ∈ 𝐵 ↔ 𝐴 ∈ 𝐶)) |
| 4 | 1, 3 | mpbid 147 | 1 ⊢ (𝜑 → 𝐴 ∈ 𝐶) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 = wceq 1397 ∈ wcel 2202 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-5 1495 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-4 1558 ax-17 1574 ax-ial 1582 ax-ext 2213 |
| This theorem depends on definitions: df-bi 117 df-cleq 2224 df-clel 2227 |
| This theorem is referenced by: eleqtrrd 2311 3eltr3d 2314 eleqtrid 2320 eleqtrdi 2324 opth1 4328 0nelop 4340 tfisi 4685 nnpredlt 4722 iotam 5318 ercl 6713 erth 6748 ecelqsdm 6774 phpm 7052 exmidpweq 7101 pw1if 7443 cc2lem 7485 cc3 7487 suplocexprlemmu 7938 suplocexprlemloc 7941 lincmb01cmp 10238 fzopth 10296 fzoaddel2 10436 fzosubel2 10441 fzocatel 10445 zpnn0elfzo1 10454 fzoend 10468 peano2fzor 10478 monoord2 10749 ser3mono 10750 bcpasc 11029 zfz1isolemiso 11104 swrdclg 11232 fisum0diag2 12010 isumsplit 12054 prodmodclem3 12138 prodmodclem2a 12139 nnmindc 12607 nnminle 12608 bassetsnn 13141 basmexd 13145 basm 13146 prdsbasfn 13366 prdsbasprj 13367 pwsplusgval 13380 pwsmulrval 13381 mgm1 13455 grpidd 13468 gsumress 13480 sgrppropd 13498 ismndd 13522 mndpropd 13525 issubmnd 13527 imasmnd 13538 grpidd2 13626 pwsinvg 13697 imasgrp 13700 submmulg 13755 subginvcl 13772 subgcl 13773 subgsub 13775 subgmulg 13777 1nsgtrivd 13808 quseccl0g 13820 kerf1ghm 13863 rngass 13955 rngcl 13960 rngpropd 13971 imasrng 13972 srgcl 13986 srgass 13987 srg1zr 14003 srgpcomp 14006 srgpcompp 14007 srgpcomppsc 14008 crngcom 14030 ringass 14032 ringidmlem 14038 ringidss 14045 ringpropd 14054 imasring 14080 qusring2 14082 mulgass3 14101 dvdsrd 14111 1unit 14124 unitmulcl 14130 dvrvald 14151 rdivmuldivd 14161 elrhmunit 14194 rhmunitinv 14195 lringuplu 14213 subrngmcl 14226 subrg1 14248 subrgmcl 14250 subrgdv 14255 subrgunit 14256 resrhm 14265 aprval 14299 aprirr 14300 aprsym 14301 aprcotr 14302 lmodprop2d 14365 lidlss 14493 lidl0cl 14500 lidlacl 14501 lidlnegcl 14502 rnglidlmsgrp 14514 2idllidld 14523 2idlridld 14524 2idlcpblrng 14540 qus1 14543 quscrng 14550 rspsn 14551 znf1o 14668 psrbagfi 14690 psrelbas 14692 iscnp4 14945 cnrest2r 14964 txbasval 14994 txlm 15006 xmetunirn 15085 xblss2ps 15131 blbas 15160 mopntopon 15170 isxms2 15179 metcnpi 15242 metcnpi2 15243 tgioo 15281 cncfmpt2fcntop 15326 limccl 15386 limcimolemlt 15391 limccnp2cntop 15404 dvmulxxbr 15429 dvcoapbr 15434 dvcjbr 15435 dvrecap 15440 plyaddlem1 15474 plymullem1 15475 plycoeid3 15484 lgseisenlem4 15805 usgr1vr 16102 clwwlkccatlem 16254 |
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