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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 5298 | . 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 2145 Vcvv 3453 ∖ cdif 3899 |
| 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 2147 ax-9 2155 ax-ext 2734 ax-sep 5255 |
| This proof depends on definitions: df-bi 210 df-an 402 df-3an 1105 df-tru 1573 df-ex 1813 df-sb 2100 df-clab 2741 df-cleq 2754 df-clel 2837 df-rab 3415 df-v 3455 df-dif 3905 df-in 3909 df-ss 3919 |
| This theorem is used by: sexp2 8147 sexp3 8154 ralxpmap 8906 domdifsn 9061 domunsncan 9078 mapdom2 9149 acni 10051 infdif 10213 infpss 10221 enfin1ai 10389 fpwwe2 10655 canthp1lem1 10664 hashf1lem1 14522 mrieqv2d 17731 mreexexlemd 17736 dpjidcl 20188 isdrng3lem2 20916 selvcllemh 22354 selvcllem4 22355 selvcllem5 22356 selvcl 22357 selvval2 22358 selvvvval 22359 selvadd 22360 selvmul 22361 pnrmopn 23569 cmpfi 23634 csdfil 24121 ufileu 24146 filufint 24147 alexsublem 24271 bcth3 25560 iunmbl 25782 tdeglem4 26287 fdifsupp 33144 gsummptres2 33480 tocycfv 33536 cyc3conja 33584 dflring4 33895 rprmdvdsprod 33931 selvascl 34014 selvply1rhmlem2 34018 selvply1rhmlem4 34020 selvply1rhm 34022 selvply1rhm0 34023 extvfvcl 34033 esummono 34551 esumpad 34552 esumpad2 34553 insiga 34635 fsuppssind 43426 tfsconcatun 44165 oaun2 44209 oaun3 44210 clcnvlem 44450 dssmapfv3d 44846 dssmapnvod 44847 ovolsplit 46803 intsal 47145 sge0ss 47227 sge0fodjrnlem 47231 iundjiun 47275 meaiunlelem 47283 iscnrm3rlem7 49859 |
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