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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 2308 | . 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 1402 ∈ wcel 2209 |
| 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 1500 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-4 1563 ax-17 1579 ax-ial 1587 ax-ext 2220 |
| This theorem depends on definitions: df-bi 117 df-cleq 2231 df-clel 2234 |
| This theorem is referenced by: eleqtrrd 2318 3eltr3d 2321 eleqtrid 2327 eleqtrdi 2331 opth1 4371 0nelop 4383 tfisi 4729 nnpredlt 4766 iotam 5364 ercl 6808 erth 6843 ecelqsdm 6869 phpm 7157 exmidpweq 7206 pw1if 7574 cc2lem 7622 cc3 7624 suplocexprlemmu 8075 suplocexprlemloc 8078 lincmb01cmp 10384 fzopth 10445 fzoaddel2 10586 fzosubel2 10591 fzocatel 10595 zpnn0elfzo1 10604 fzoend 10618 peano2fzor 10628 infssfzcldc 10647 infssfzledc 10648 monoord2 10901 ser3mono 10902 bcpasc 11182 zfz1isolemiso 11269 swrdclg 11400 fisum0diag2 12192 isumsplit 12236 prodmodclem3 12320 prodmodclem2a 12321 nnmindc 12789 nnminle 12790 bassetsnn 13387 basmexd 13391 basm 13392 mgm1 13667 grpidd 13680 gzsumress 13689 sgrppropd 13705 ismndd 13727 mndpropd 13730 issubmnd 13732 imasmnd 13737 grpidd2 13823 imasgrp 13891 submmulg 13946 subginvcl 13963 subgcl 13964 subgsub 13966 subgmulg 13968 1nsgtrivd 13999 quseccl0g 14011 kerf1ghm 14054 prdsbasfn 14158 prdsbasprj 14159 pwsplusgval 14185 pwsmulrval 14186 pwsinvg 14192 rngass 14213 rngcl 14218 rngpropd 14229 imasrng 14230 srgcl 14248 srgass 14249 srgpcomp 14268 srgpcompp 14269 srgpcomppsc 14270 crngcom 14292 ringass 14294 ringidmlem 14300 ringidss 14307 ringpropd 14316 imasring 14342 qusring2 14344 mulgass3 14364 dvdsrd 14374 1unit 14387 unitmulcl 14393 dvrvald 14414 rdivmuldivd 14424 elrhmunit 14457 rhmunitinv 14458 lringuplu 14476 subrngmcl 14490 subrg1 14512 subrgmcl 14514 subrgdv 14519 subrgunit 14520 resrhm 14529 aprval 14564 aprirr 14568 aprsym 14569 aprcotr 14570 opprdrng 14593 lmodprop2d 14657 lidlss 14785 lidl0cl 14792 lidlacl 14793 lidlnegcl 14794 rnglidlmsgrp 14806 2idllidld 14815 2idlridld 14816 2idlcpblrng 14832 qus1 14835 quscrng 14842 rspsn 14843 znf1o 14958 psrbagfi 14982 psrelbas 14989 iscnp4 15242 cnrest2r 15261 txbasval 15291 txlm 15303 xmetunirn 15382 xblss2ps 15428 blbas 15457 mopntopon 15467 isxms2 15476 metcnpi 15539 metcnpi2 15540 tgioo 15578 cncfmpt2fcntop 15623 limccl 15683 limcimolemlt 15688 limccnp2cntop 15701 dvmulxxbr 15726 dvcoapbr 15731 dvcjbr 15732 dvrecap 15737 plyaddlem1 15771 plymullem1 15772 plycoeid3 15781 lgseisenlem4 16106 usgr1vr 16403 clwwlkccatlem 16555 |
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