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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 1398 ∈ 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 1496 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-4 1559 ax-17 1575 ax-ial 1583 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 4334 0nelop 4346 tfisi 4691 nnpredlt 4728 iotam 5325 ercl 6756 erth 6791 ecelqsdm 6817 phpm 7095 exmidpweq 7144 pw1if 7503 cc2lem 7545 cc3 7547 suplocexprlemmu 7998 suplocexprlemloc 8001 lincmb01cmp 10299 fzopth 10358 fzoaddel2 10498 fzosubel2 10503 fzocatel 10507 zpnn0elfzo1 10516 fzoend 10530 peano2fzor 10540 monoord2 10811 ser3mono 10812 bcpasc 11091 zfz1isolemiso 11166 swrdclg 11297 fisum0diag2 12088 isumsplit 12132 prodmodclem3 12216 prodmodclem2a 12217 nnmindc 12685 nnminle 12686 bassetsnn 13219 basmexd 13223 basm 13224 prdsbasfn 13444 prdsbasprj 13445 pwsplusgval 13458 pwsmulrval 13459 mgm1 13533 grpidd 13546 gsumress 13558 sgrppropd 13576 ismndd 13600 mndpropd 13603 issubmnd 13605 imasmnd 13616 grpidd2 13704 pwsinvg 13775 imasgrp 13778 submmulg 13833 subginvcl 13850 subgcl 13851 subgsub 13853 subgmulg 13855 1nsgtrivd 13886 quseccl0g 13898 kerf1ghm 13941 rngass 14033 rngcl 14038 rngpropd 14049 imasrng 14050 srgcl 14064 srgass 14065 srg1zr 14081 srgpcomp 14084 srgpcompp 14085 srgpcomppsc 14086 crngcom 14108 ringass 14110 ringidmlem 14116 ringidss 14123 ringpropd 14132 imasring 14158 qusring2 14160 mulgass3 14179 dvdsrd 14189 1unit 14202 unitmulcl 14208 dvrvald 14229 rdivmuldivd 14239 elrhmunit 14272 rhmunitinv 14273 lringuplu 14291 subrngmcl 14304 subrg1 14326 subrgmcl 14328 subrgdv 14333 subrgunit 14334 resrhm 14343 aprval 14378 aprirr 14379 aprsym 14380 aprcotr 14381 lmodprop2d 14444 lidlss 14572 lidl0cl 14579 lidlacl 14580 lidlnegcl 14581 rnglidlmsgrp 14593 2idllidld 14602 2idlridld 14603 2idlcpblrng 14619 qus1 14622 quscrng 14629 rspsn 14630 znf1o 14747 psrbagfi 14770 psrelbas 14776 iscnp4 15029 cnrest2r 15048 txbasval 15078 txlm 15090 xmetunirn 15169 xblss2ps 15215 blbas 15244 mopntopon 15254 isxms2 15263 metcnpi 15326 metcnpi2 15327 tgioo 15365 cncfmpt2fcntop 15410 limccl 15470 limcimolemlt 15475 limccnp2cntop 15488 dvmulxxbr 15513 dvcoapbr 15518 dvcjbr 15519 dvrecap 15524 plyaddlem1 15558 plymullem1 15559 plycoeid3 15568 lgseisenlem4 15892 usgr1vr 16189 clwwlkccatlem 16341 |
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