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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 4881 | . 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 1537 ∩ cint 4878 |
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 2795 |
This theorem depends on definitions: df-bi 209 df-an 399 df-ex 1781 df-sb 2070 df-clab 2802 df-cleq 2816 df-clel 2895 df-ral 3145 df-int 4879 |
This theorem is referenced by: intprg 4912 elreldm 5807 ordintdif 6242 fniinfv 6744 onsucmin 7538 elxp5 7630 1stval2 7708 2ndval2 7709 fundmen 8585 xpsnen 8603 unblem2 8773 unblem3 8774 fiint 8797 elfi2 8880 fi0 8886 elfiun 8896 tcvalg 9182 tz9.12lem3 9220 rankvalb 9228 rankvalg 9248 ranksnb 9258 rankonidlem 9259 cardval3 9383 cardidm 9390 cfval 9671 cflim3 9686 coftr 9697 isfin3ds 9753 fin23lem17 9762 fin23lem39 9774 isf33lem 9790 isf34lem5 9802 isf34lem6 9804 wuncval 10166 tskmval 10263 cleq1 14345 dfrtrcl2 14423 mrcfval 16881 mrcval 16883 cycsubg2 18355 efgval 18845 lspfval 19747 lspval 19749 lsppropd 19792 aspval 20104 aspval2 20129 clsfval 21635 clsval 21647 clsval2 21660 hauscmplem 22016 cmpfi 22018 1stcfb 22055 fclscmp 22640 spanval 29112 chsupid 29191 sigagenval 31401 kur14 32465 mclsval 32812 scutval 33267 igenval 35341 pclfvalN 37027 pclvalN 37028 diaintclN 38196 docaffvalN 38259 docafvalN 38260 docavalN 38261 dibintclN 38305 dihglb2 38480 dihintcl 38482 mzpval 39336 dnnumch3lem 39653 aomclem8 39668 rgspnval 39775 harsucnn 39910 iotain 40756 salgenval 42613 |
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