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| Mirrors > Home > MPE Home > Th. List > fsuppsssupp | Structured version Visualization version GIF version | ||
| Description: If the support of a function is a subset of the support of a finitely supported function, the function is finitely supported. (Contributed by AV, 2-Jul-2019.) (Proof shortened by AV, 15-Jul-2019.) |
| Ref | Expression |
|---|---|
| fsuppsssupp | ⊢ (((𝐺 ∈ 𝑉 ∧ Fun 𝐺) ∧ (𝐹 finSupp 𝑍 ∧ (𝐺 supp 𝑍) ⊆ (𝐹 supp 𝑍))) → 𝐺 finSupp 𝑍) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | simpll 767 | . 2 ⊢ (((𝐺 ∈ 𝑉 ∧ Fun 𝐺) ∧ (𝐹 finSupp 𝑍 ∧ (𝐺 supp 𝑍) ⊆ (𝐹 supp 𝑍))) → 𝐺 ∈ 𝑉) | |
| 2 | simplr 769 | . 2 ⊢ (((𝐺 ∈ 𝑉 ∧ Fun 𝐺) ∧ (𝐹 finSupp 𝑍 ∧ (𝐺 supp 𝑍) ⊆ (𝐹 supp 𝑍))) → Fun 𝐺) | |
| 3 | relfsupp 9276 | . . . 4 ⊢ Rel finSupp | |
| 4 | 3 | brrelex2i 5688 | . . 3 ⊢ (𝐹 finSupp 𝑍 → 𝑍 ∈ V) |
| 5 | 4 | ad2antrl 729 | . 2 ⊢ (((𝐺 ∈ 𝑉 ∧ Fun 𝐺) ∧ (𝐹 finSupp 𝑍 ∧ (𝐺 supp 𝑍) ⊆ (𝐹 supp 𝑍))) → 𝑍 ∈ V) |
| 6 | id 22 | . . . . 5 ⊢ (𝐹 finSupp 𝑍 → 𝐹 finSupp 𝑍) | |
| 7 | 6 | fsuppimpd 9282 | . . . 4 ⊢ (𝐹 finSupp 𝑍 → (𝐹 supp 𝑍) ∈ Fin) |
| 8 | 7 | anim1i 616 | . . 3 ⊢ ((𝐹 finSupp 𝑍 ∧ (𝐺 supp 𝑍) ⊆ (𝐹 supp 𝑍)) → ((𝐹 supp 𝑍) ∈ Fin ∧ (𝐺 supp 𝑍) ⊆ (𝐹 supp 𝑍))) |
| 9 | 8 | adantl 481 | . 2 ⊢ (((𝐺 ∈ 𝑉 ∧ Fun 𝐺) ∧ (𝐹 finSupp 𝑍 ∧ (𝐺 supp 𝑍) ⊆ (𝐹 supp 𝑍))) → ((𝐹 supp 𝑍) ∈ Fin ∧ (𝐺 supp 𝑍) ⊆ (𝐹 supp 𝑍))) |
| 10 | suppssfifsupp 9293 | . 2 ⊢ (((𝐺 ∈ 𝑉 ∧ Fun 𝐺 ∧ 𝑍 ∈ V) ∧ ((𝐹 supp 𝑍) ∈ Fin ∧ (𝐺 supp 𝑍) ⊆ (𝐹 supp 𝑍))) → 𝐺 finSupp 𝑍) | |
| 11 | 1, 2, 5, 9, 10 | syl31anc 1376 | 1 ⊢ (((𝐺 ∈ 𝑉 ∧ Fun 𝐺) ∧ (𝐹 finSupp 𝑍 ∧ (𝐺 supp 𝑍) ⊆ (𝐹 supp 𝑍))) → 𝐺 finSupp 𝑍) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 395 ∈ wcel 2114 Vcvv 3429 ⊆ wss 3889 class class class wbr 5085 Fun wfun 6492 (class class class)co 7367 supp csupp 8110 Fincfn 8893 finSupp cfsupp 9274 |
| 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-10 2147 ax-11 2163 ax-12 2185 ax-ext 2708 ax-sep 5231 ax-nul 5241 ax-pr 5375 ax-un 7689 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2539 df-eu 2569 df-clab 2715 df-cleq 2728 df-clel 2811 df-nfc 2885 df-ne 2933 df-ral 3052 df-rex 3062 df-reu 3343 df-rab 3390 df-v 3431 df-sbc 3729 df-dif 3892 df-un 3894 df-in 3896 df-ss 3906 df-pss 3909 df-nul 4274 df-if 4467 df-pw 4543 df-sn 4568 df-pr 4570 df-op 4574 df-uni 4851 df-br 5086 df-opab 5148 df-tr 5193 df-id 5526 df-eprel 5531 df-po 5539 df-so 5540 df-fr 5584 df-we 5586 df-xp 5637 df-rel 5638 df-cnv 5639 df-co 5640 df-dm 5641 df-rn 5642 df-res 5643 df-ima 5644 df-ord 6326 df-on 6327 df-lim 6328 df-suc 6329 df-iota 6454 df-fun 6500 df-fn 6501 df-f 6502 df-f1 6503 df-fo 6504 df-f1o 6505 df-fv 6506 df-ov 7370 df-om 7818 df-1o 8405 df-en 8894 df-fin 8897 df-fsupp 9275 |
| This theorem is referenced by: cantnflem1 9610 dprdfinv 19996 dmdprdsplitlem 20014 dpjidcl 20035 frlmphllem 21760 frlmphl 21761 rrxcph 25359 tdeglem4 26025 elrspunidl 33488 |
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