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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 764 | . 2 ⊢ (((𝐺 ∈ 𝑉 ∧ Fun 𝐺) ∧ (𝐹 finSupp 𝑍 ∧ (𝐺 supp 𝑍) ⊆ (𝐹 supp 𝑍))) → 𝐺 ∈ 𝑉) | |
2 | simplr 766 | . 2 ⊢ (((𝐺 ∈ 𝑉 ∧ Fun 𝐺) ∧ (𝐹 finSupp 𝑍 ∧ (𝐺 supp 𝑍) ⊆ (𝐹 supp 𝑍))) → Fun 𝐺) | |
3 | relfsupp 9367 | . . . 4 ⊢ Rel finSupp | |
4 | 3 | brrelex2i 5733 | . . 3 ⊢ (𝐹 finSupp 𝑍 → 𝑍 ∈ V) |
5 | 4 | ad2antrl 725 | . 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 9373 | . . . 4 ⊢ (𝐹 finSupp 𝑍 → (𝐹 supp 𝑍) ∈ Fin) |
8 | 7 | anim1i 614 | . . 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 9382 | . 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 1372 | 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 2105 Vcvv 3473 ⊆ wss 3948 class class class wbr 5148 Fun wfun 6537 (class class class)co 7412 supp csupp 8150 Fincfn 8943 finSupp cfsupp 9365 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1912 ax-6 1970 ax-7 2010 ax-8 2107 ax-9 2115 ax-10 2136 ax-11 2153 ax-12 2170 ax-ext 2702 ax-sep 5299 ax-nul 5306 ax-pr 5427 ax-un 7729 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 845 df-3or 1087 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1781 df-nf 1785 df-sb 2067 df-mo 2533 df-eu 2562 df-clab 2709 df-cleq 2723 df-clel 2809 df-nfc 2884 df-ne 2940 df-ral 3061 df-rex 3070 df-reu 3376 df-rab 3432 df-v 3475 df-sbc 3778 df-dif 3951 df-un 3953 df-in 3955 df-ss 3965 df-pss 3967 df-nul 4323 df-if 4529 df-pw 4604 df-sn 4629 df-pr 4631 df-op 4635 df-uni 4909 df-br 5149 df-opab 5211 df-tr 5266 df-id 5574 df-eprel 5580 df-po 5588 df-so 5589 df-fr 5631 df-we 5633 df-xp 5682 df-rel 5683 df-cnv 5684 df-co 5685 df-dm 5686 df-rn 5687 df-res 5688 df-ima 5689 df-ord 6367 df-on 6368 df-lim 6369 df-suc 6370 df-iota 6495 df-fun 6545 df-fn 6546 df-f 6547 df-f1 6548 df-fo 6549 df-f1o 6550 df-fv 6551 df-ov 7415 df-om 7860 df-1o 8470 df-en 8944 df-fin 8947 df-fsupp 9366 |
This theorem is referenced by: cantnflem1 9688 dprdfinv 19931 dmdprdsplitlem 19949 dpjidcl 19970 frlmphllem 21555 frlmphl 21556 rrxcph 25141 tdeglem4 25813 tdeglem4OLD 25814 elrspunidl 32821 |
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