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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 |
| This proof depends on syntax axioms: → wi 4 = wceq 1402 ∈ wcel 2209 |
| This proof depends on 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 proof depends on definitions: df-bi 117 df-cleq 2231 df-clel 2234 |
| This theorem is used by: eleqtrrd 2318 3eltr3d 2321 eleqtrid 2327 eleqtrdi 2331 opth1 4376 0nelop 4388 tfisi 4734 nnpredlt 4771 iotam 5369 ercl 6818 erth 6853 ecelqsdm 6879 phpm 7167 exmidpweq 7216 pw1if 7585 cc2lem 7633 cc3 7635 suplocexprlemmu 8086 suplocexprlemloc 8089 lincmb01cmp 10416 fzopth 10478 fzoaddel2 10619 fzosubel2 10624 fzocatel 10628 zpnn0elfzo1 10637 fzoend 10651 peano2fzor 10661 infssfzcldc 10680 infssfzledc 10681 monoord2 10938 ser3mono 10939 bcpasc 11220 zfz1isolemiso 11307 swrdclg 11438 fisum0diag2 12233 isumsplit 12277 prodmodclem3 12361 prodmodclem2a 12362 nnmindc 12830 nnminle 12831 bassetsnn 13461 basmexd 13465 basm 13466 slotm 13467 mgm1 13743 grpidd 13756 gzsumress 13765 sgrppropd 13781 ismndd 13803 mndpropd 13806 issubmnd 13808 imasmnd 13813 grpidd2 13899 imasgrp 13967 submmulg 14022 subginvcl 14039 subgcl 14040 subgsub 14042 subgmulg 14044 1nsgtrivd 14075 quseccl0g 14087 kerf1ghm 14130 prdsbasfn 14265 prdsbasprj 14266 pwsplusgval 14292 pwsmulrval 14293 pwsinvg 14299 rngass 14322 rngcl 14327 rngpropd 14338 imasrng 14339 srgcl 14358 srgass 14359 srgpcomp 14378 srgpcompp 14379 srgpcomppsc 14380 crngcom 14402 ringass 14404 ringidmlem 14411 ringidss 14418 ringpropd 14427 imasring 14453 qusring2 14455 mulgass3 14475 dvdsrd 14485 1unit 14498 unitmulcl 14504 dvrvald 14525 rdivmuldivd 14535 elrhmunit 14568 rhmunitinv 14569 lringuplu 14587 subrngmcl 14601 subrg1 14623 subrgmcl 14625 subrgdv 14630 subrgunit 14631 resrhm 14640 aprval 14675 aprirr 14679 aprsym 14680 aprcotr 14681 opprdrng 14704 lmodprop2d 14769 lidlss 14897 lidl0cl 14904 lidlacl 14905 lidlnegcl 14906 rnglidlmsgrp 14918 2idllidld 14927 2idlridld 14928 2idlcpblrng 14944 qus1 14947 quscrng 14954 rspsn 14955 znf1o 15070 assapropd 15098 psrbagfi 15143 psrbaglefifi 15147 psrelbas 15151 psrmulvalfi 15160 iscnp4 15410 cnrest2r 15429 txbasval 15459 txlm 15471 xmetunirn 15550 xblss2ps 15596 blbas 15625 mopntopon 15635 isxms2 15644 metcnpi 15707 metcnpi2 15708 tgioo 15746 cncfmpt2fcntop 15791 limccl 15851 limcimolemlt 15856 limccnp2cntop 15869 dvmulxxbr 15894 dvcoapbr 15899 dvcjbr 15900 dvrecap 15905 plyaddlem1 15939 plymullem1 15940 plycoeid3 15949 ppinprm 16221 chtnprm 16223 lgseisenlem4 16358 usgr1vr 16655 clwwlkccatlem 16807 |
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