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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 5273 | . 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 3439 ∖ cdif 3897 |
| 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 2707 ax-sep 5240 |
| 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 2714 df-cleq 2727 df-clel 2810 df-rab 3399 df-v 3441 df-dif 3903 df-in 3907 df-ss 3917 |
| This theorem is referenced by: sexp2 8088 sexp3 8095 ralxpmap 8836 domdifsn 8990 domunsncan 9007 mapdom2 9078 acni 9957 infdif 10120 infpss 10128 enfin1ai 10296 fpwwe2 10556 canthp1lem1 10565 hashf1lem1 14380 mrieqv2d 17564 mreexexlemd 17569 dpjidcl 19991 pnrmopn 23289 cmpfi 23354 csdfil 23840 ufileu 23865 filufint 23866 alexsublem 23990 bcth3 25289 iunmbl 25512 tdeglem4 26023 fdifsupp 32743 gsummptres2 33115 tocycfv 33170 cyc3conja 33218 rprmdvdsprod 33594 extvfvvcl 33679 extvfvcl 33680 esummono 34190 esumpad 34191 esumpad2 34192 insiga 34273 selvcllemh 42860 selvcllem4 42861 selvcllem5 42862 selvcl 42863 selvval2 42864 selvvvval 42865 selvadd 42868 selvmul 42869 fsuppssind 42873 tfsconcatun 43616 oaun2 43660 oaun3 43661 clcnvlem 43901 dssmapfv3d 44297 dssmapnvod 44298 ovolsplit 46269 intsal 46611 sge0ss 46693 sge0fodjrnlem 46697 iundjiun 46741 meaiunlelem 46749 iscnrm3rlem7 49228 |
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