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| Mirrors > Home > MPE Home > Th. List > difexd | Structured version Visualization version GIF version | ||
| Description: Existence of a difference. (Contributed by SN, 16-Jul-2024.) |
| Ref | Expression |
|---|---|
| difexd.1 | ⊢ (𝜑 → 𝐴 ∈ 𝑉) |
| Ref | Expression |
|---|---|
| difexd | ⊢ (𝜑 → (𝐴 ∖ 𝐵) ∈ V) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | difexd.1 | . 2 ⊢ (𝜑 → 𝐴 ∈ 𝑉) | |
| 2 | difexg 5290 | . 2 ⊢ (𝐴 ∈ 𝑉 → (𝐴 ∖ 𝐵) ∈ V) | |
| 3 | 1, 2 | syl 18 | 1 ⊢ (𝜑 → (𝐴 ∖ 𝐵) ∈ V) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∈ wcel 2144 Vcvv 3450 ∖ cdif 4045 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-ext 2732 ax-sep 5248 |
| This proof depends on definitions: df-bi 210 df-an 402 df-3an 1105 df-tru 1572 df-ex 1812 df-sb 2099 df-clab 2739 df-cleq 2752 df-clel 2835 df-rab 3413 df-v 3452 df-ss 3896 df-dif 4047 df-in 4091 |
| This theorem is used by: sexp2 8163 sexp3 8170 ralxpmap 8924 domdifsn 9079 domunsncan 9096 mapdom2 9167 acni 10124 infdif 10286 infpss 10294 enfin1ai 10462 fpwwe2 10728 canthp1lem1 10737 hashf1lem1 14600 mrieqv2d 17813 mreexexlemd 17818 dpjidcl 20274 isdrng3lem2 21006 selvcllemh 22446 selvcllem4 22447 selvcllem5 22448 selvcl 22449 selvval2 22450 selvvvval 22451 selvadd 22452 selvmul 22453 pnrmopn 23661 cmpfi 23726 csdfil 24213 ufileu 24238 filufint 24239 alexsublem 24363 bcth3 25652 iunmbl 25874 tdeglem4 26378 fdifsupp 33278 gsummptres2 33614 tocycfv 33670 cyc3conja 33718 dflring4 34030 rprmdvdsprod 34066 selvascl 34149 selvply1rhmlem2 34153 selvply1rhmlem4 34155 selvply1rhm 34157 selvply1rhm0 34158 extvfvcl 34168 esummono 34686 esumpad 34687 esumpad2 34688 insiga 34770 fsuppssind 43622 tfsconcatun 44339 oaun2 44383 oaun3 44384 clcnvlem 44623 dssmapfv3d 45019 dssmapnvod 45020 ovolsplit 46998 intsal 47340 sge0ss 47422 sge0fodjrnlem 47426 iundjiun 47470 meaiunlelem 47478 iscnrm3rlem7 50054 |
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