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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 4413 | . 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 1475 ∩ cint 4410 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-4 1728 ax-5 1827 ax-6 1875 ax-7 1922 ax-10 2006 ax-11 2021 ax-12 2034 ax-13 2234 ax-ext 2590 |
This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-tru 1478 df-ex 1696 df-nf 1701 df-sb 1868 df-clab 2597 df-cleq 2603 df-clel 2606 df-nfc 2740 df-ral 2901 df-int 4411 |
This theorem is referenced by: intprg 4446 elreldm 5271 ordintdif 5691 fniinfv 6167 onsucmin 6913 elxp5 7004 1stval2 7076 2ndval2 7077 fundmen 7916 xpsnen 7929 unblem2 8098 unblem3 8099 fiint 8122 elfi2 8203 fi0 8209 elfiun 8219 tcvalg 8497 tz9.12lem3 8535 rankvalb 8543 rankvalg 8563 ranksnb 8573 rankonidlem 8574 cardval3 8661 cardidm 8668 cfval 8952 cflim3 8967 coftr 8978 isfin3ds 9034 fin23lem17 9043 fin23lem39 9055 isf33lem 9071 isf34lem5 9083 isf34lem6 9085 wuncval 9443 tskmval 9540 cleq1 13570 dfrtrcl2 13650 mrcfval 16091 mrcval 16093 cycsubg2 17454 efgval 17953 lspfval 18794 lspval 18796 lsppropd 18839 aspval 19149 aspval2 19168 clsfval 20639 clsval 20651 clsval2 20664 hauscmplem 21019 cmpfi 21021 1stcfb 21058 fclscmp 21644 spanval 27576 chsupid 27655 sigagenval 29530 kur14 30452 mclsval 30714 igenval 33030 pclfvalN 34193 pclvalN 34194 diaintclN 35365 docaffvalN 35428 docafvalN 35429 docavalN 35430 dibintclN 35474 dihglb2 35649 dihintcl 35651 mzpval 36313 dnnumch3lem 36634 aomclem8 36649 rgspnval 36757 iotain 37640 salgenval 39217 |
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