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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 5295 | . 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 2147 Vcvv 3454 ∖ cdif 4048 |
| 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 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-ext 2735 ax-sep 5252 |
| This proof depends on definitions: df-bi 210 df-an 402 df-3an 1105 df-tru 1573 df-ex 1813 df-sb 2102 df-clab 2742 df-cleq 2755 df-clel 2839 df-rab 3417 df-v 3456 df-ss 3901 df-dif 4050 df-in 4094 |
| This theorem is used by: sexp2 8187 sexp3 8194 ralxpmap 8949 domdifsn 9104 domunsncan 9121 mapdom2 9192 acni 10148 infdif 10310 infpss 10318 enfin1ai 10486 fpwwe2 10752 canthp1lem1 10761 hashf1lem1 14624 mrieqv2d 17839 mreexexlemd 17844 dpjidcl 20301 isdrng3lem2 21033 selvcllemh 22473 selvcllem4 22474 selvcllem5 22475 selvcl 22476 selvval2 22477 selvvvval 22478 selvadd 22479 selvmul 22480 pnrmopn 23688 cmpfi 23753 csdfil 24240 ufileu 24265 filufint 24266 alexsublem 24390 bcth3 25679 iunmbl 25901 tdeglem4 26405 fdifsupp 33346 gsummptres2 33681 tocycfv 33737 cyc3conja 33785 dflring4 34097 rprmdvdsprod 34133 selvascl 34216 selvply1rhmlem2 34220 selvply1rhmlem4 34222 selvply1rhm 34224 selvply1rhm0 34225 extvfvcl 34235 esummono 34753 esumpad 34754 esumpad2 34755 insiga 34837 gdlop3fv 35964 fsuppssind 43812 tfsconcatun 44529 oaun2 44573 oaun3 44574 clcnvlem 44813 dssmapfv3d 45209 dssmapnvod 45210 ovolsplit 47201 intsal 47543 sge0ss 47625 sge0fodjrnlem 47629 iundjiun 47673 meaiunlelem 47681 iscnrm3rlem7 50263 |
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