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Mirrors > Home > MPE Home > Th. List > fcdmnn0supp | Structured version Visualization version GIF version |
Description: Two ways to write the support of a function into ℕ0. (Contributed by Mario Carneiro, 29-Dec-2014.) (Revised by AV, 7-Jul-2019.) |
Ref | Expression |
---|---|
fcdmnn0supp | ⊢ ((𝐼 ∈ 𝑉 ∧ 𝐹:𝐼⟶ℕ0) → (𝐹 supp 0) = (◡𝐹 “ ℕ)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | c0ex 11284 | . . . 4 ⊢ 0 ∈ V | |
2 | fsuppeq 8216 | . . . 4 ⊢ ((𝐼 ∈ 𝑉 ∧ 0 ∈ V) → (𝐹:𝐼⟶ℕ0 → (𝐹 supp 0) = (◡𝐹 “ (ℕ0 ∖ {0})))) | |
3 | 1, 2 | mpan2 690 | . . 3 ⊢ (𝐼 ∈ 𝑉 → (𝐹:𝐼⟶ℕ0 → (𝐹 supp 0) = (◡𝐹 “ (ℕ0 ∖ {0})))) |
4 | 3 | imp 406 | . 2 ⊢ ((𝐼 ∈ 𝑉 ∧ 𝐹:𝐼⟶ℕ0) → (𝐹 supp 0) = (◡𝐹 “ (ℕ0 ∖ {0}))) |
5 | dfn2 12566 | . . 3 ⊢ ℕ = (ℕ0 ∖ {0}) | |
6 | 5 | imaeq2i 6087 | . 2 ⊢ (◡𝐹 “ ℕ) = (◡𝐹 “ (ℕ0 ∖ {0})) |
7 | 4, 6 | eqtr4di 2798 | 1 ⊢ ((𝐼 ∈ 𝑉 ∧ 𝐹:𝐼⟶ℕ0) → (𝐹 supp 0) = (◡𝐹 “ ℕ)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 395 = wceq 1537 ∈ wcel 2108 Vcvv 3488 ∖ cdif 3973 {csn 4648 ◡ccnv 5699 “ cima 5703 ⟶wf 6569 (class class class)co 7448 supp csupp 8201 0cc0 11184 ℕcn 12293 ℕ0cn0 12553 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1793 ax-4 1807 ax-5 1909 ax-6 1967 ax-7 2007 ax-8 2110 ax-9 2118 ax-10 2141 ax-11 2158 ax-12 2178 ax-ext 2711 ax-rep 5303 ax-sep 5317 ax-nul 5324 ax-pow 5383 ax-pr 5447 ax-un 7770 ax-resscn 11241 ax-1cn 11242 ax-icn 11243 ax-addcl 11244 ax-addrcl 11245 ax-mulcl 11246 ax-mulrcl 11247 ax-mulcom 11248 ax-addass 11249 ax-mulass 11250 ax-distr 11251 ax-i2m1 11252 ax-1ne0 11253 ax-1rid 11254 ax-rnegex 11255 ax-rrecex 11256 ax-cnre 11257 ax-pre-lttri 11258 ax-pre-lttrn 11259 ax-pre-ltadd 11260 |
This theorem depends on definitions: df-bi 207 df-an 396 df-or 847 df-3or 1088 df-3an 1089 df-tru 1540 df-fal 1550 df-ex 1778 df-nf 1782 df-sb 2065 df-mo 2543 df-eu 2572 df-clab 2718 df-cleq 2732 df-clel 2819 df-nfc 2895 df-ne 2947 df-nel 3053 df-ral 3068 df-rex 3077 df-reu 3389 df-rab 3444 df-v 3490 df-sbc 3805 df-csb 3922 df-dif 3979 df-un 3981 df-in 3983 df-ss 3993 df-pss 3996 df-nul 4353 df-if 4549 df-pw 4624 df-sn 4649 df-pr 4651 df-op 4655 df-uni 4932 df-iun 5017 df-br 5167 df-opab 5229 df-mpt 5250 df-tr 5284 df-id 5593 df-eprel 5599 df-po 5607 df-so 5608 df-fr 5652 df-we 5654 df-xp 5706 df-rel 5707 df-cnv 5708 df-co 5709 df-dm 5710 df-rn 5711 df-res 5712 df-ima 5713 df-pred 6332 df-ord 6398 df-on 6399 df-lim 6400 df-suc 6401 df-iota 6525 df-fun 6575 df-fn 6576 df-f 6577 df-f1 6578 df-fo 6579 df-f1o 6580 df-fv 6581 df-ov 7451 df-oprab 7452 df-mpo 7453 df-om 7904 df-2nd 8031 df-supp 8202 df-frecs 8322 df-wrecs 8353 df-recs 8427 df-rdg 8466 df-er 8763 df-en 9004 df-dom 9005 df-sdom 9006 df-pnf 11326 df-mnf 11327 df-xr 11328 df-ltxr 11329 df-le 11330 df-nn 12294 df-n0 12554 |
This theorem is referenced by: mplcoe5 22081 mplbas2 22083 ltbwe 22085 eulerpartlems 34325 eulerpartlemb 34333 eulerpartgbij 34337 |
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