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Mirrors > Home > MPE Home > Th. List > inteqd | Structured version Visualization version GIF version |
Description: Equality deduction for class intersection. (Contributed by NM, 2-Sep-2003.) |
Ref | Expression |
---|---|
inteqd.1 | ⊢ (𝜑 → 𝐴 = 𝐵) |
Ref | Expression |
---|---|
inteqd | ⊢ (𝜑 → ∩ 𝐴 = ∩ 𝐵) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | inteqd.1 | . 2 ⊢ (𝜑 → 𝐴 = 𝐵) | |
2 | inteq 4841 | . 2 ⊢ (𝐴 = 𝐵 → ∩ 𝐴 = ∩ 𝐵) | |
3 | 1, 2 | syl 17 | 1 ⊢ (𝜑 → ∩ 𝐴 = ∩ 𝐵) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1538 ∩ cint 4838 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2113 ax-9 2121 ax-ext 2770 |
This theorem depends on definitions: df-bi 210 df-an 400 df-ex 1782 df-sb 2070 df-clab 2777 df-cleq 2791 df-clel 2870 df-ral 3111 df-int 4839 |
This theorem is referenced by: intprg 4872 elreldm 5769 ordintdif 6208 fniinfv 6717 onsucmin 7516 elxp5 7610 1stval2 7688 2ndval2 7689 fundmen 8566 xpsnen 8584 unblem2 8755 unblem3 8756 fiint 8779 elfi2 8862 fi0 8868 elfiun 8878 tcvalg 9164 tz9.12lem3 9202 rankvalb 9210 rankvalg 9230 ranksnb 9240 rankonidlem 9241 cardval3 9365 cardidm 9372 harsucnn 9411 cfval 9658 cflim3 9673 coftr 9684 isfin3ds 9740 fin23lem17 9749 fin23lem39 9761 isf33lem 9777 isf34lem5 9789 isf34lem6 9791 wuncval 10153 tskmval 10250 cleq1 14334 dfrtrcl2 14413 mrcfval 16871 mrcval 16873 cycsubg2 18345 efgval 18835 lspfval 19738 lspval 19740 lsppropd 19783 aspval 20559 aspval2 20584 clsfval 21630 clsval 21642 clsval2 21655 hauscmplem 22011 cmpfi 22013 1stcfb 22050 fclscmp 22635 spanval 29116 chsupid 29195 intimafv 30470 zarclsint 31225 zarcmplem 31234 sigagenval 31509 kur14 32576 mclsval 32923 scutval 33378 igenval 35499 pclfvalN 37185 pclvalN 37186 diaintclN 38354 docaffvalN 38417 docafvalN 38418 docavalN 38419 dibintclN 38463 dihglb2 38638 dihintcl 38640 mzpval 39673 dnnumch3lem 39990 aomclem8 40005 rgspnval 40112 iotain 41121 salgenval 42963 |
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