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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 2304 | . 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 2205 |
| 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 2216 |
| This theorem depends on definitions: df-bi 117 df-cleq 2227 df-clel 2230 |
| This theorem is referenced by: eleqtrrd 2314 3eltr3d 2317 eleqtrid 2323 eleqtrdi 2327 opth1 4357 0nelop 4369 tfisi 4714 nnpredlt 4751 iotam 5349 ercl 6791 erth 6826 ecelqsdm 6852 phpm 7133 exmidpweq 7182 pw1if 7548 cc2lem 7596 cc3 7598 suplocexprlemmu 8049 suplocexprlemloc 8052 lincmb01cmp 10355 fzopth 10416 fzoaddel2 10557 fzosubel2 10562 fzocatel 10566 zpnn0elfzo1 10575 fzoend 10589 peano2fzor 10599 infssfzcldc 10618 infssfzledc 10619 monoord2 10872 ser3mono 10873 bcpasc 11153 zfz1isolemiso 11236 swrdclg 11367 fisum0diag2 12158 isumsplit 12202 prodmodclem3 12286 prodmodclem2a 12287 nnmindc 12755 nnminle 12756 bassetsnn 13353 basmexd 13357 basm 13358 mgm1 13633 grpidd 13646 gsumress 13658 sgrppropd 13676 ismndd 13698 mndpropd 13701 issubmnd 13703 imasmnd 13708 grpidd2 13796 imasgrp 13864 submmulg 13919 subginvcl 13936 subgcl 13937 subgsub 13939 subgmulg 13941 1nsgtrivd 13972 quseccl0g 13984 kerf1ghm 14027 prdsbasfn 14123 prdsbasprj 14124 pwsplusgval 14150 pwsmulrval 14151 pwsinvg 14157 rngass 14178 rngcl 14183 rngpropd 14194 imasrng 14195 srgcl 14213 srgass 14214 srgpcomp 14233 srgpcompp 14234 srgpcomppsc 14235 crngcom 14257 ringass 14259 ringidmlem 14265 ringidss 14272 ringpropd 14281 imasring 14307 qusring2 14309 mulgass3 14329 dvdsrd 14339 1unit 14352 unitmulcl 14358 dvrvald 14379 rdivmuldivd 14389 elrhmunit 14422 rhmunitinv 14423 lringuplu 14441 subrngmcl 14455 subrg1 14477 subrgmcl 14479 subrgdv 14484 subrgunit 14485 resrhm 14494 aprval 14529 aprirr 14533 aprsym 14534 aprcotr 14535 opprdrng 14558 lmodprop2d 14622 lidlss 14750 lidl0cl 14757 lidlacl 14758 lidlnegcl 14759 rnglidlmsgrp 14771 2idllidld 14780 2idlridld 14781 2idlcpblrng 14797 qus1 14800 quscrng 14807 rspsn 14808 znf1o 14925 psrbagfi 14949 psrelbas 14956 iscnp4 15209 cnrest2r 15228 txbasval 15258 txlm 15270 xmetunirn 15349 xblss2ps 15395 blbas 15424 mopntopon 15434 isxms2 15443 metcnpi 15506 metcnpi2 15507 tgioo 15545 cncfmpt2fcntop 15590 limccl 15650 limcimolemlt 15655 limccnp2cntop 15668 dvmulxxbr 15693 dvcoapbr 15698 dvcjbr 15699 dvrecap 15704 plyaddlem1 15738 plymullem1 15739 plycoeid3 15748 lgseisenlem4 16072 usgr1vr 16369 clwwlkccatlem 16521 |
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