Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > MPE Home > Th. List > difeq12d | Structured version Visualization version GIF version |
Description: Equality deduction for class difference. (Contributed by FL, 29-May-2014.) |
Ref | Expression |
---|---|
difeq12d.1 | ⊢ (𝜑 → 𝐴 = 𝐵) |
difeq12d.2 | ⊢ (𝜑 → 𝐶 = 𝐷) |
Ref | Expression |
---|---|
difeq12d | ⊢ (𝜑 → (𝐴 ∖ 𝐶) = (𝐵 ∖ 𝐷)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | difeq12d.1 | . . 3 ⊢ (𝜑 → 𝐴 = 𝐵) | |
2 | 1 | difeq1d 4049 | . 2 ⊢ (𝜑 → (𝐴 ∖ 𝐶) = (𝐵 ∖ 𝐶)) |
3 | difeq12d.2 | . . 3 ⊢ (𝜑 → 𝐶 = 𝐷) | |
4 | 3 | difeq2d 4050 | . 2 ⊢ (𝜑 → (𝐵 ∖ 𝐶) = (𝐵 ∖ 𝐷)) |
5 | 2, 4 | eqtrd 2833 | 1 ⊢ (𝜑 → (𝐴 ∖ 𝐶) = (𝐵 ∖ 𝐷)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1538 ∖ cdif 3878 |
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-rab 3115 df-dif 3884 |
This theorem is referenced by: boxcutc 8488 unfilem3 8768 infdifsn 9104 cantnfp1lem3 9127 isf32lem6 9769 isf32lem7 9770 isf32lem8 9771 domtriomlem 9853 domtriom 9854 alephsuc3 9991 symgfixelsi 18555 pmtrprfval 18607 dprdf1o 19147 isirred 19445 isdrng 19499 isdrngd 19520 drngpropd 19522 issubdrg 19553 subdrgint 19575 islbs 19841 lbspropd 19864 lssacsex 19909 lspsnat 19910 frlmlbs 20486 islindf 20501 lindfmm 20516 lsslindf 20519 ptcld 22218 iundisj 24152 iundisj2 24153 iunmbl 24157 volsup 24160 dchrval 25818 nbgrval 27126 nbgr1vtx 27148 iundisjf 30352 iundisj2f 30353 iundisjfi 30545 iundisj2fi 30546 lindfpropd 30996 rprmval 31072 sradrng 31076 qtophaus 31189 zrhunitpreima 31329 meascnbl 31588 brae 31610 braew 31611 ballotlemfrc 31894 reprdifc 32008 chtvalz 32010 satffunlem2lem2 32766 csbdif 34742 poimirlem4 35061 poimirlem6 35063 poimirlem7 35064 poimirlem9 35066 poimirlem13 35070 poimirlem14 35071 poimirlem16 35073 poimirlem19 35076 voliunnfl 35101 itg2addnclem 35108 isdivrngo 35388 drngoi 35389 lsatset 36286 watfvalN 37288 mapdpglem26 38994 mapdpglem27 38995 hvmapffval 39054 hvmapfval 39055 hvmap1o2 39061 prjspval 39597 dssmapfvd 40718 fzdifsuc2 41942 stoweidlem34 42676 subsalsal 42999 iundjiunlem 43098 iundjiun 43099 meaiuninc 43120 carageniuncllem1 43160 carageniuncl 43162 hspdifhsp 43255 |
Copyright terms: Public domain | W3C validator |