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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 5278 | . 2 ⊢ (𝐴 ∈ 𝑉 → (𝐴 ∖ 𝐵) ∈ V) | |
| 3 | 1, 2 | syl 17 | 1 ⊢ (𝜑 → (𝐴 ∖ 𝐵) ∈ V) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∈ wcel 2114 Vcvv 3442 ∖ cdif 3900 |
| 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 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-ext 2709 ax-sep 5245 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-3an 1089 df-tru 1545 df-ex 1782 df-sb 2069 df-clab 2716 df-cleq 2729 df-clel 2812 df-rab 3402 df-v 3444 df-dif 3906 df-in 3910 df-ss 3920 |
| This theorem is referenced by: sexp2 8100 sexp3 8107 ralxpmap 8848 domdifsn 9002 domunsncan 9019 mapdom2 9090 acni 9969 infdif 10132 infpss 10140 enfin1ai 10308 fpwwe2 10568 canthp1lem1 10577 hashf1lem1 14392 mrieqv2d 17576 mreexexlemd 17581 dpjidcl 20006 pnrmopn 23304 cmpfi 23369 csdfil 23855 ufileu 23880 filufint 23881 alexsublem 24005 bcth3 25304 iunmbl 25527 tdeglem4 26038 fdifsupp 32781 gsummptres2 33153 tocycfv 33209 cyc3conja 33257 rprmdvdsprod 33633 extvfvvcl 33718 extvfvcl 33719 esummono 34238 esumpad 34239 esumpad2 34240 insiga 34321 selvcllemh 42967 selvcllem4 42968 selvcllem5 42969 selvcl 42970 selvval2 42971 selvvvval 42972 selvadd 42975 selvmul 42976 fsuppssind 42980 tfsconcatun 43723 oaun2 43767 oaun3 43768 clcnvlem 44008 dssmapfv3d 44404 dssmapnvod 44405 ovolsplit 46375 intsal 46717 sge0ss 46799 sge0fodjrnlem 46803 iundjiun 46847 meaiunlelem 46855 iscnrm3rlem7 49334 |
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