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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 2302 | . 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 2203 |
| 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 2214 |
| This theorem depends on definitions: df-bi 117 df-cleq 2225 df-clel 2228 |
| This theorem is referenced by: eleqtrrd 2312 3eltr3d 2315 eleqtrid 2321 eleqtrdi 2325 opth1 4352 0nelop 4364 tfisi 4709 nnpredlt 4746 iotam 5344 ercl 6778 erth 6813 ecelqsdm 6839 phpm 7120 exmidpweq 7169 pw1if 7535 cc2lem 7580 cc3 7582 suplocexprlemmu 8033 suplocexprlemloc 8036 lincmb01cmp 10336 fzopth 10395 fzoaddel2 10535 fzosubel2 10540 fzocatel 10544 zpnn0elfzo1 10553 fzoend 10567 peano2fzor 10577 monoord2 10848 ser3mono 10849 bcpasc 11128 zfz1isolemiso 11211 swrdclg 11342 fisum0diag2 12133 isumsplit 12177 prodmodclem3 12261 prodmodclem2a 12262 nnmindc 12730 nnminle 12731 bassetsnn 13269 basmexd 13273 basm 13274 prdsbasfn 13494 prdsbasprj 13495 pwsplusgval 13508 pwsmulrval 13509 mgm1 13583 grpidd 13596 gsumress 13608 sgrppropd 13626 ismndd 13650 mndpropd 13653 issubmnd 13655 imasmnd 13666 grpidd2 13754 pwsinvg 13825 imasgrp 13828 submmulg 13883 subginvcl 13900 subgcl 13901 subgsub 13903 subgmulg 13905 1nsgtrivd 13936 quseccl0g 13948 kerf1ghm 13991 rngass 14083 rngcl 14088 rngpropd 14099 imasrng 14100 srgcl 14114 srgass 14115 srg1zr 14131 srgpcomp 14134 srgpcompp 14135 srgpcomppsc 14136 crngcom 14158 ringass 14160 ringidmlem 14166 ringidss 14173 ringpropd 14182 imasring 14208 qusring2 14210 mulgass3 14229 dvdsrd 14239 1unit 14252 unitmulcl 14258 dvrvald 14279 rdivmuldivd 14289 elrhmunit 14322 rhmunitinv 14323 lringuplu 14341 subrngmcl 14354 subrg1 14376 subrgmcl 14378 subrgdv 14383 subrgunit 14384 resrhm 14393 aprval 14428 aprirr 14429 aprsym 14430 aprcotr 14431 lmodprop2d 14496 lidlss 14624 lidl0cl 14631 lidlacl 14632 lidlnegcl 14633 rnglidlmsgrp 14645 2idllidld 14654 2idlridld 14655 2idlcpblrng 14671 qus1 14674 quscrng 14681 rspsn 14682 znf1o 14799 psrbagfi 14823 psrelbas 14830 iscnp4 15083 cnrest2r 15102 txbasval 15132 txlm 15144 xmetunirn 15223 xblss2ps 15269 blbas 15298 mopntopon 15308 isxms2 15317 metcnpi 15380 metcnpi2 15381 tgioo 15419 cncfmpt2fcntop 15464 limccl 15524 limcimolemlt 15529 limccnp2cntop 15542 dvmulxxbr 15567 dvcoapbr 15572 dvcjbr 15573 dvrecap 15578 plyaddlem1 15612 plymullem1 15613 plycoeid3 15622 lgseisenlem4 15946 usgr1vr 16243 clwwlkccatlem 16395 |
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