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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 5294 | . 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 3450 ∖ cdif 3896 |
| 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 2732 ax-sep 5251 |
| 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 2739 df-cleq 2752 df-clel 2835 df-rab 3413 df-v 3452 df-dif 3902 df-in 3906 df-ss 3916 |
| This theorem is used by: sexp2 8145 sexp3 8152 ralxpmap 8906 domdifsn 9061 domunsncan 9078 mapdom2 9149 acni 10051 infdif 10213 infpss 10221 enfin1ai 10389 fpwwe2 10655 canthp1lem1 10664 hashf1lem1 14523 mrieqv2d 17730 mreexexlemd 17735 dpjidcl 20190 isdrng3lem2 20918 selvcllemh 22356 selvcllem4 22357 selvcllem5 22358 selvcl 22359 selvval2 22360 selvvvval 22361 selvadd 22362 selvmul 22363 pnrmopn 23571 cmpfi 23636 csdfil 24123 ufileu 24148 filufint 24149 alexsublem 24273 bcth3 25562 iunmbl 25784 tdeglem4 26288 fdifsupp 33160 gsummptres2 33496 tocycfv 33552 cyc3conja 33600 dflring4 33911 rprmdvdsprod 33947 selvascl 34030 selvply1rhmlem2 34034 selvply1rhmlem4 34036 selvply1rhm 34038 selvply1rhm0 34039 extvfvcl 34049 esummono 34567 esumpad 34568 esumpad2 34569 insiga 34651 fsuppssind 43442 tfsconcatun 44181 oaun2 44225 oaun3 44226 clcnvlem 44466 dssmapfv3d 44862 dssmapnvod 44863 ovolsplit 46819 intsal 47161 sge0ss 47243 sge0fodjrnlem 47247 iundjiun 47291 meaiunlelem 47299 iscnrm3rlem7 49875 |
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