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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 776 | . 2 ⊢ (((𝐺 ∈ 𝑉 ∧ Fun 𝐺) ∧ (𝐹 finSupp 𝑍 ∧ (𝐺 supp 𝑍) ⊆ (𝐹 supp 𝑍))) → 𝐺 ∈ 𝑉) | |
| 2 | simplr 778 | . 2 ⊢ (((𝐺 ∈ 𝑉 ∧ Fun 𝐺) ∧ (𝐹 finSupp 𝑍 ∧ (𝐺 supp 𝑍) ⊆ (𝐹 supp 𝑍))) → Fun 𝐺) | |
| 3 | relfsupp 9303 | . . . 4 ⊢ Rel finSupp | |
| 4 | 3 | brrelex2i 5700 | . . 3 ⊢ (𝐹 finSupp 𝑍 → 𝑍 ∈ V) |
| 5 | 4 | ad2antrl 738 | . 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 9309 | . . . 4 ⊢ (𝐹 finSupp 𝑍 → (𝐹 supp 𝑍) ∈ Fin) |
| 8 | 7 | anim1i 624 | . . 3 ⊢ ((𝐹 finSupp 𝑍 ∧ (𝐺 supp 𝑍) ⊆ (𝐹 supp 𝑍)) → ((𝐹 supp 𝑍) ∈ Fin ∧ (𝐺 supp 𝑍) ⊆ (𝐹 supp 𝑍))) |
| 9 | 8 | adantl 485 | . 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 9320 | . 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 1391 | 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 399 ∈ wcel 2141 Vcvv 3453 ⊆ wss 3902 class class class wbr 5097 Fun wfun 6510 (class class class)co 7391 supp csupp 8134 Fincfn 8921 finSupp cfsupp 9301 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1814 ax-4 1828 ax-5 1929 ax-6 1986 ax-7 2027 ax-8 2143 ax-9 2151 ax-10 2174 ax-11 2190 ax-12 2211 ax-ext 2733 ax-sep 5243 ax-nul 5253 ax-pr 5387 ax-un 7713 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3or 1098 df-3an 1099 df-tru 1562 df-fal 1572 df-ex 1799 df-nf 1803 df-sb 2090 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-ral 3076 df-rex 3086 df-reu 3367 df-rab 3414 df-v 3455 df-sbc 3743 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-pss 3922 df-nul 4284 df-if 4478 df-pw 4554 df-sn 4580 df-pr 4582 df-op 4586 df-uni 4863 df-br 5098 df-opab 5160 df-tr 5205 df-id 5538 df-eprel 5543 df-po 5551 df-so 5552 df-fr 5596 df-we 5598 df-xp 5649 df-rel 5650 df-cnv 5651 df-co 5652 df-dm 5653 df-rn 5654 df-res 5655 df-ima 5656 df-ord 6344 df-on 6345 df-lim 6346 df-suc 6347 df-iota 6472 df-fun 6518 df-fn 6519 df-f 6520 df-f1 6521 df-fo 6522 df-f1o 6523 df-fv 6524 df-ov 7394 df-om 7842 df-1o 8431 df-en 8922 df-fin 8925 df-fsupp 9302 |
| This theorem is referenced by: cantnflem1 9638 dprdfinv 20052 dmdprdsplitlem 20070 dpjidcl 20091 frlmphllem 21820 frlmphl 21821 rrxcph 25442 tdeglem4 26108 elrspunidl 33575 |
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