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| Mirrors > Home > MPE Home > Th. List > suppssdm | Structured version Visualization version GIF version | ||
| Description: The support of a function is a subset of the function's domain. (Contributed by AV, 30-May-2019.) |
| Ref | Expression |
|---|---|
| suppssdm | ⊢ (𝐹 supp 𝑍) ⊆ dom 𝐹 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | suppval 8161 | . . 3 ⊢ ((𝐹 ∈ V ∧ 𝑍 ∈ V) → (𝐹 supp 𝑍) = {𝑖 ∈ dom 𝐹 ∣ (𝐹 “ {𝑖}) ≠ {𝑍}}) | |
| 2 | ssrab2 4028 | . . 3 ⊢ {𝑖 ∈ dom 𝐹 ∣ (𝐹 “ {𝑖}) ≠ {𝑍}} ⊆ dom 𝐹 | |
| 3 | 1, 2 | eqsstrdi 3975 | . 2 ⊢ ((𝐹 ∈ V ∧ 𝑍 ∈ V) → (𝐹 supp 𝑍) ⊆ dom 𝐹) |
| 4 | supp0prc 8162 | . . 3 ⊢ (¬ (𝐹 ∈ V ∧ 𝑍 ∈ V) → (𝐹 supp 𝑍) = ∅) | |
| 5 | 0ss 4350 | . . 3 ⊢ ∅ ⊆ dom 𝐹 | |
| 6 | 4, 5 | eqsstrdi 3975 | . 2 ⊢ (¬ (𝐹 ∈ V ∧ 𝑍 ∈ V) → (𝐹 supp 𝑍) ⊆ dom 𝐹) |
| 7 | 3, 6 | pm2.61i 184 | 1 ⊢ (𝐹 supp 𝑍) ⊆ dom 𝐹 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ¬ wn 3 ∧ wa 401 ∈ wcel 2145 ≠ wne 2955 {crab 3412 Vcvv 3450 ⊆ wss 3899 ∅c0 4279 {csn 4584 dom cdm 5655 “ cima 5658 (class class class)co 7414 supp csupp 8159 |
| 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-10 2178 ax-11 2194 ax-12 2213 ax-ext 2732 ax-sep 5251 ax-nul 5263 ax-pr 5398 ax-un 7737 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-ral 3077 df-rex 3087 df-rab 3413 df-v 3452 df-sbc 3740 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-br 5104 df-opab 5168 df-id 5550 df-xp 5661 df-rel 5662 df-cnv 5663 df-co 5664 df-dm 5665 df-rn 5666 df-res 5667 df-ima 5668 df-iota 6489 df-fun 6535 df-fv 6541 df-ov 7417 df-oprab 7418 df-mpo 7419 df-supp 8160 |
| This theorem is used by: snopsuppss 8178 wemapso2lem 9525 cantnfcl 9647 cantnfle 9651 cantnflt 9652 cantnff 9654 cantnfres 9657 cantnfp1lem3 9660 cantnflem1b 9666 cantnflem1 9669 cantnflem3 9671 cnfcomlem 9679 cnfcom 9680 cnfcom3lem 9683 cnfcom3 9684 fsuppmapnn0fiublem 14055 fsuppmapnn0fiub 14056 gsumval3lem1 20033 gsumval3lem2 20034 gsumval3 20035 gsumzres 20037 gsumzcl2 20038 gsumzf1o 20040 gsumzaddlem 20049 gsumconst 20062 gsumzoppg 20072 gsum2d 20100 dpjidcl 20188 gsumfsum 21648 regsumsupp 21836 frlmlbs 22011 psrass1lem 22149 psrass1 22179 psrass23l 22182 psrcom 22183 psrass23 22184 mplcoe1 22254 psropprmul 22463 coe1mul2 22496 tsmsgsum 24366 rrxcph 25621 rrxsuppss 25632 rrxmval 25634 mdegfval 26288 mdegleb 26290 mdegldg 26292 deg1mul3le 26343 wilthlem3 27307 suppovss 33154 fressupp 33161 ressupprn 33163 supppreima 33164 fsupprnfi 33165 fsuppcurry1 33196 fsuppcurry2 33197 gsumfs2d 33502 gsumhashmul 33508 elrgspnlem4 33686 elrgspnsubrunlem1 33688 elrgspnsubrunlem2 33689 elrspunidl 33857 rprmdvdsprod 33945 1arithidom 33948 esplymhp 34079 esplyfv1 34080 esplyfval3 34083 esplyfval1 34084 esplyfvaln 34085 esplyind 34086 fedgmullem1 34140 fldextrspunlsplem 34184 fldextrspunlsp 34185 zarcmplem 34392 fdivmpt 49471 fdivmptf 49472 refdivmptf 49473 fdivpm 49474 refdivpm 49475 |
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