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Mirrors > Home > MPE Home > Th. List > suppss2 | Structured version Visualization version GIF version |
Description: Show that the support of a function is contained in a set. (Contributed by Mario Carneiro, 19-Dec-2014.) (Revised by Mario Carneiro, 22-Mar-2015.) (Revised by AV, 28-May-2019.) |
Ref | Expression |
---|---|
suppss2.n | ⊢ ((𝜑 ∧ 𝑘 ∈ (𝐴 ∖ 𝑊)) → 𝐵 = 𝑍) |
suppss2.a | ⊢ (𝜑 → 𝐴 ∈ 𝑉) |
Ref | Expression |
---|---|
suppss2 | ⊢ (𝜑 → ((𝑘 ∈ 𝐴 ↦ 𝐵) supp 𝑍) ⊆ 𝑊) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eqid 2821 | . . . . 5 ⊢ (𝑘 ∈ 𝐴 ↦ 𝐵) = (𝑘 ∈ 𝐴 ↦ 𝐵) | |
2 | suppss2.a | . . . . . 6 ⊢ (𝜑 → 𝐴 ∈ 𝑉) | |
3 | 2 | adantl 484 | . . . . 5 ⊢ ((𝑍 ∈ V ∧ 𝜑) → 𝐴 ∈ 𝑉) |
4 | simpl 485 | . . . . 5 ⊢ ((𝑍 ∈ V ∧ 𝜑) → 𝑍 ∈ V) | |
5 | 1, 3, 4 | mptsuppdifd 7846 | . . . 4 ⊢ ((𝑍 ∈ V ∧ 𝜑) → ((𝑘 ∈ 𝐴 ↦ 𝐵) supp 𝑍) = {𝑘 ∈ 𝐴 ∣ 𝐵 ∈ (V ∖ {𝑍})}) |
6 | eldifsni 4716 | . . . . . . 7 ⊢ (𝐵 ∈ (V ∖ {𝑍}) → 𝐵 ≠ 𝑍) | |
7 | eldif 3946 | . . . . . . . . . 10 ⊢ (𝑘 ∈ (𝐴 ∖ 𝑊) ↔ (𝑘 ∈ 𝐴 ∧ ¬ 𝑘 ∈ 𝑊)) | |
8 | suppss2.n | . . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑘 ∈ (𝐴 ∖ 𝑊)) → 𝐵 = 𝑍) | |
9 | 8 | adantll 712 | . . . . . . . . . 10 ⊢ (((𝑍 ∈ V ∧ 𝜑) ∧ 𝑘 ∈ (𝐴 ∖ 𝑊)) → 𝐵 = 𝑍) |
10 | 7, 9 | sylan2br 596 | . . . . . . . . 9 ⊢ (((𝑍 ∈ V ∧ 𝜑) ∧ (𝑘 ∈ 𝐴 ∧ ¬ 𝑘 ∈ 𝑊)) → 𝐵 = 𝑍) |
11 | 10 | expr 459 | . . . . . . . 8 ⊢ (((𝑍 ∈ V ∧ 𝜑) ∧ 𝑘 ∈ 𝐴) → (¬ 𝑘 ∈ 𝑊 → 𝐵 = 𝑍)) |
12 | 11 | necon1ad 3033 | . . . . . . 7 ⊢ (((𝑍 ∈ V ∧ 𝜑) ∧ 𝑘 ∈ 𝐴) → (𝐵 ≠ 𝑍 → 𝑘 ∈ 𝑊)) |
13 | 6, 12 | syl5 34 | . . . . . 6 ⊢ (((𝑍 ∈ V ∧ 𝜑) ∧ 𝑘 ∈ 𝐴) → (𝐵 ∈ (V ∖ {𝑍}) → 𝑘 ∈ 𝑊)) |
14 | 13 | 3impia 1113 | . . . . 5 ⊢ (((𝑍 ∈ V ∧ 𝜑) ∧ 𝑘 ∈ 𝐴 ∧ 𝐵 ∈ (V ∖ {𝑍})) → 𝑘 ∈ 𝑊) |
15 | 14 | rabssdv 4051 | . . . 4 ⊢ ((𝑍 ∈ V ∧ 𝜑) → {𝑘 ∈ 𝐴 ∣ 𝐵 ∈ (V ∖ {𝑍})} ⊆ 𝑊) |
16 | 5, 15 | eqsstrd 4005 | . . 3 ⊢ ((𝑍 ∈ V ∧ 𝜑) → ((𝑘 ∈ 𝐴 ↦ 𝐵) supp 𝑍) ⊆ 𝑊) |
17 | 16 | ex 415 | . 2 ⊢ (𝑍 ∈ V → (𝜑 → ((𝑘 ∈ 𝐴 ↦ 𝐵) supp 𝑍) ⊆ 𝑊)) |
18 | id 22 | . . . . . 6 ⊢ (¬ 𝑍 ∈ V → ¬ 𝑍 ∈ V) | |
19 | 18 | intnand 491 | . . . . 5 ⊢ (¬ 𝑍 ∈ V → ¬ ((𝑘 ∈ 𝐴 ↦ 𝐵) ∈ V ∧ 𝑍 ∈ V)) |
20 | supp0prc 7827 | . . . . 5 ⊢ (¬ ((𝑘 ∈ 𝐴 ↦ 𝐵) ∈ V ∧ 𝑍 ∈ V) → ((𝑘 ∈ 𝐴 ↦ 𝐵) supp 𝑍) = ∅) | |
21 | 19, 20 | syl 17 | . . . 4 ⊢ (¬ 𝑍 ∈ V → ((𝑘 ∈ 𝐴 ↦ 𝐵) supp 𝑍) = ∅) |
22 | 0ss 4350 | . . . 4 ⊢ ∅ ⊆ 𝑊 | |
23 | 21, 22 | eqsstrdi 4021 | . . 3 ⊢ (¬ 𝑍 ∈ V → ((𝑘 ∈ 𝐴 ↦ 𝐵) supp 𝑍) ⊆ 𝑊) |
24 | 23 | a1d 25 | . 2 ⊢ (¬ 𝑍 ∈ V → (𝜑 → ((𝑘 ∈ 𝐴 ↦ 𝐵) supp 𝑍) ⊆ 𝑊)) |
25 | 17, 24 | pm2.61i 184 | 1 ⊢ (𝜑 → ((𝑘 ∈ 𝐴 ↦ 𝐵) supp 𝑍) ⊆ 𝑊) |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 → wi 4 ∧ wa 398 = wceq 1533 ∈ wcel 2110 ≠ wne 3016 {crab 3142 Vcvv 3495 ∖ cdif 3933 ⊆ wss 3936 ∅c0 4291 {csn 4561 ↦ cmpt 5139 (class class class)co 7150 supp csupp 7824 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1792 ax-4 1806 ax-5 1907 ax-6 1966 ax-7 2011 ax-8 2112 ax-9 2120 ax-10 2141 ax-11 2156 ax-12 2172 ax-ext 2793 ax-rep 5183 ax-sep 5196 ax-nul 5203 ax-pow 5259 ax-pr 5322 ax-un 7455 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3an 1085 df-tru 1536 df-ex 1777 df-nf 1781 df-sb 2066 df-mo 2618 df-eu 2650 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ne 3017 df-ral 3143 df-rex 3144 df-reu 3145 df-rab 3147 df-v 3497 df-sbc 3773 df-csb 3884 df-dif 3939 df-un 3941 df-in 3943 df-ss 3952 df-nul 4292 df-if 4468 df-sn 4562 df-pr 4564 df-op 4568 df-uni 4833 df-iun 4914 df-br 5060 df-opab 5122 df-mpt 5140 df-id 5455 df-xp 5556 df-rel 5557 df-cnv 5558 df-co 5559 df-dm 5560 df-rn 5561 df-res 5562 df-ima 5563 df-iota 6309 df-fun 6352 df-fn 6353 df-f 6354 df-f1 6355 df-fo 6356 df-f1o 6357 df-fv 6358 df-ov 7153 df-oprab 7154 df-mpo 7155 df-supp 7825 |
This theorem is referenced by: suppsssn 7859 fsuppmptif 8857 sniffsupp 8867 cantnflem1d 9145 cantnflem1 9146 gsumzsplit 19041 gsummpt1n0 19079 gsum2dlem1 19084 gsum2dlem2 19085 gsum2d 19086 dprdfid 19133 dprdfinv 19135 dprdfadd 19136 dmdprdsplitlem 19153 dpjidcl 19174 psrbagaddcl 20144 psrlidm 20177 psrridm 20178 mplsubrg 20214 mplmon 20238 mplmonmul 20239 mplcoe1 20240 mplcoe5 20243 mplbas2 20245 evlslem4 20282 evlslem2 20286 evlslem3 20287 evlslem1 20289 coe1tmmul2 20438 coe1tmmul 20439 uvcff 20929 uvcresum 20931 tsmssplit 22754 coe1mul3 24687 plypf1 24796 tayl0 24944 suppss2f 30378 suppss3 30454 fedgmullem2 31021 |
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