| 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 4083 | . 2 ⊢ (𝜑 → (𝐴 ∖ 𝐶) = (𝐵 ∖ 𝐶)) |
| 3 | difeq12d.2 | . . 3 ⊢ (𝜑 → 𝐶 = 𝐷) | |
| 4 | 3 | difeq2d 4084 | . 2 ⊢ (𝜑 → (𝐵 ∖ 𝐶) = (𝐵 ∖ 𝐷)) |
| 5 | 2, 4 | eqtrd 2801 | 1 ⊢ (𝜑 → (𝐴 ∖ 𝐶) = (𝐵 ∖ 𝐷)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 = wceq 1570 ∖ cdif 3905 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2148 ax-9 2156 ax-ext 2738 |
| This proof depends on definitions: df-bi 210 df-an 402 df-ex 1813 df-sb 2100 df-clab 2745 df-cleq 2758 df-clel 2841 df-rab 3420 df-dif 3911 |
| This theorem is used by: csbdif 4491 xpord2pred 8150 xpord3pred 8157 boxcutc 8948 unfilem3 9277 infdifsn 9636 cantnfp1lem3 9659 isf32lem6 10360 isf32lem7 10361 isf32lem8 10362 domtriomlem 10444 domtriom 10445 alephsuc3 10583 symgfixelsi 19536 pmtrprfval 19588 dprdf1o 20135 isirred 20534 isdrng 20868 isdrngd 20905 isdrngdOLD 20907 drngpropd 20910 issubdrg 20920 subdrgint 20943 islbs 21234 lbspropd 21257 lssacsex 21305 lspsnat 21306 frlmlbs 21984 islindf 21999 lindfmm 22014 lsslindf 22017 psdmullem 22365 ptcld 23807 iundisj 25744 iundisj2 25745 iunmbl 25749 volsup 25752 dchrval 27435 newval 28065 ltslpss 28138 leslss 28139 nbgrval 29723 nbgr1vtx 29745 iundisjf 32971 iundisj2f 32972 iundisjfi 33178 iundisj2fi 33179 lindfpropd 33726 opprqusdrng 33806 rprmval 33837 isufd 33861 sradrng 34003 qtophaus 34257 zrhunitpreima 34397 meascnbl 34641 brae 34663 braew 34664 ballotlemfrc 34949 reprdifc 35046 chtvalz 35048 onvf1odlem3 35613 satffunlem2lem2 35919 poimirlem4 38316 poimirlem6 38318 poimirlem7 38319 poimirlem9 38321 poimirlem13 38325 poimirlem14 38326 poimirlem16 38328 poimirlem19 38331 voliunnfl 38356 itg2addnclem 38363 isdivrngo 38642 drngoi 38643 lsatset 39805 watfvalN 40807 mapdpglem26 42513 mapdpglem27 42514 hvmapffval 42573 hvmapfval 42574 hvmap1o2 42580 prjspval 43376 prjspnvs 43393 cantnfresb 44092 tfsconcatun 44105 tfsconcat0i 44113 dssmapfvd 44784 fzdifsuc2 46070 stoweidlem34 46789 subsalsal 47114 iundjiunlem 47214 iundjiun 47215 meaiuninc 47236 carageniuncllem1 47276 carageniuncl 47278 hspdifhsp 47371 |
| Copyright terms: Public domain | W3C validator |