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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 2299 | . 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 1395 ∈ wcel 2200 |
| 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 1493 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-4 1556 ax-17 1572 ax-ial 1580 ax-ext 2211 |
| This theorem depends on definitions: df-bi 117 df-cleq 2222 df-clel 2225 |
| This theorem is referenced by: eleqtrrd 2309 3eltr3d 2312 eleqtrid 2318 eleqtrdi 2322 opth1 4322 0nelop 4334 tfisi 4679 nnpredlt 4716 iotam 5310 ercl 6699 erth 6734 ecelqsdm 6760 phpm 7035 exmidpweq 7082 pw1if 7421 cc2lem 7463 cc3 7465 suplocexprlemmu 7916 suplocexprlemloc 7919 lincmb01cmp 10211 fzopth 10269 fzoaddel2 10408 fzosubel2 10413 fzocatel 10417 zpnn0elfzo1 10426 fzoend 10440 peano2fzor 10450 monoord2 10720 ser3mono 10721 bcpasc 11000 zfz1isolemiso 11074 swrdclg 11198 fisum0diag2 11974 isumsplit 12018 prodmodclem3 12102 prodmodclem2a 12103 nnmindc 12571 nnminle 12572 bassetsnn 13105 basmexd 13109 basm 13110 prdsbasfn 13330 prdsbasprj 13331 pwsplusgval 13344 pwsmulrval 13345 mgm1 13419 grpidd 13432 gsumress 13444 sgrppropd 13462 ismndd 13486 mndpropd 13489 issubmnd 13491 imasmnd 13502 grpidd2 13590 pwsinvg 13661 imasgrp 13664 submmulg 13719 subginvcl 13736 subgcl 13737 subgsub 13739 subgmulg 13741 1nsgtrivd 13772 quseccl0g 13784 kerf1ghm 13827 rngass 13918 rngcl 13923 rngpropd 13934 imasrng 13935 srgcl 13949 srgass 13950 srg1zr 13966 srgpcomp 13969 srgpcompp 13970 srgpcomppsc 13971 crngcom 13993 ringass 13995 ringidmlem 14001 ringidss 14008 ringpropd 14017 imasring 14043 qusring2 14045 mulgass3 14064 dvdsrd 14074 1unit 14087 unitmulcl 14093 dvrvald 14114 rdivmuldivd 14124 elrhmunit 14157 rhmunitinv 14158 lringuplu 14176 subrngmcl 14189 subrg1 14211 subrgmcl 14213 subrgdv 14218 subrgunit 14219 resrhm 14228 aprval 14262 aprirr 14263 aprsym 14264 aprcotr 14265 lmodprop2d 14328 lidlss 14456 lidl0cl 14463 lidlacl 14464 lidlnegcl 14465 rnglidlmsgrp 14477 2idllidld 14486 2idlridld 14487 2idlcpblrng 14503 qus1 14506 quscrng 14513 rspsn 14514 znf1o 14631 psrbagfi 14653 psrelbas 14655 iscnp4 14908 cnrest2r 14927 txbasval 14957 txlm 14969 xmetunirn 15048 xblss2ps 15094 blbas 15123 mopntopon 15133 isxms2 15142 metcnpi 15205 metcnpi2 15206 tgioo 15244 cncfmpt2fcntop 15289 limccl 15349 limcimolemlt 15354 limccnp2cntop 15367 dvmulxxbr 15392 dvcoapbr 15397 dvcjbr 15398 dvrecap 15403 plyaddlem1 15437 plymullem1 15438 plycoeid3 15447 lgseisenlem4 15768 clwwlkccatlem 16143 |
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