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Mirrors > Home > MPE Home > Th. List > ineq12d | Structured version Visualization version GIF version |
Description: Equality deduction for intersection of two classes. (Contributed by NM, 24-Jun-2004.) (Proof shortened by Andrew Salmon, 26-Jun-2011.) |
Ref | Expression |
---|---|
ineq1d.1 | ⊢ (𝜑 → 𝐴 = 𝐵) |
ineq12d.2 | ⊢ (𝜑 → 𝐶 = 𝐷) |
Ref | Expression |
---|---|
ineq12d | ⊢ (𝜑 → (𝐴 ∩ 𝐶) = (𝐵 ∩ 𝐷)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ineq1d.1 | . 2 ⊢ (𝜑 → 𝐴 = 𝐵) | |
2 | ineq12d.2 | . 2 ⊢ (𝜑 → 𝐶 = 𝐷) | |
3 | ineq12 4184 | . 2 ⊢ ((𝐴 = 𝐵 ∧ 𝐶 = 𝐷) → (𝐴 ∩ 𝐶) = (𝐵 ∩ 𝐷)) | |
4 | 1, 2, 3 | syl2anc 586 | 1 ⊢ (𝜑 → (𝐴 ∩ 𝐶) = (𝐵 ∩ 𝐷)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1537 ∩ cin 3935 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-ext 2793 |
This theorem depends on definitions: df-bi 209 df-an 399 df-tru 1540 df-ex 1781 df-sb 2070 df-clab 2800 df-cleq 2814 df-clel 2893 df-rab 3147 df-in 3943 |
This theorem is referenced by: csbin 4391 predeq123 6149 funcnvtp 6417 offval 7416 ofrfval 7417 oev2 8148 isf32lem7 9781 ressval 16551 invffval 17028 invfval 17029 dfiso2 17042 isofn 17045 oppcinv 17050 zerooval 17259 isps 17812 dmdprd 19120 dprddisj 19131 dprdf1o 19154 dmdprdsplit2lem 19167 dmdprdpr 19171 pgpfaclem1 19203 isunit 19407 dfrhm2 19469 isrhm 19473 2idlval 20006 aspval 20102 ressmplbas2 20236 pjfval 20850 isconn 22021 connsuba 22028 ptbasin 22185 ptclsg 22223 qtopval 22303 rnelfmlem 22560 trust 22838 isnmhm 23355 uniioombllem2a 24183 dyaddisjlem 24196 dyaddisj 24197 i1faddlem 24294 i1fmullem 24295 limcflf 24479 ewlksfval 27383 isewlk 27384 ewlkinedg 27386 ispth 27504 trlsegvdeg 28006 frcond3 28048 numclwwlk3lem2 28163 chocin 29272 cmbr3 29385 pjoml3 29389 fh1 29395 fnunres1 30356 xppreima2 30395 cosnopne 30430 swrdrndisj 30631 hauseqcn 31138 prsssdm 31160 ordtrestNEW 31164 ordtrest2NEW 31166 cndprobval 31691 ballotlemfrc 31784 bnj1421 32314 satffunlem 32648 satffunlem1lem2 32650 satffunlem2lem1 32651 satffunlem2lem2 32653 msrval 32785 msrf 32789 ismfs 32796 clsun 33676 poimirlem8 34915 itg2addnclem2 34959 heiborlem4 35107 heiborlem6 35109 heiborlem10 35113 pmodl42N 37002 polfvalN 37055 poldmj1N 37079 pmapj2N 37080 pnonsingN 37084 psubclinN 37099 poml4N 37104 osumcllem9N 37115 trnfsetN 37306 diainN 38208 djaffvalN 38284 djafvalN 38285 djajN 38288 dihmeetcl 38496 dihmeet2 38497 dochnoncon 38542 djhffval 38547 djhfval 38548 djhlj 38552 dochdmm1 38561 lclkrlem2g 38664 lclkrlem2v 38679 lcfrlem21 38714 lcfrlem24 38717 mapdunirnN 38801 baerlem5amN 38867 baerlem5bmN 38868 baerlem5abmN 38869 mapdheq4lem 38882 mapdh6lem1N 38884 mapdh6lem2N 38885 hdmap1l6lem1 38958 hdmap1l6lem2 38959 aomclem8 39710 disjrnmpt2 41498 dvsinax 42246 dvcosax 42260 nnfoctbdjlem 42786 smfpimcc 43131 smfsuplem2 43135 rhmval 44239 |
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