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Mirrors > Home > MPE Home > Th. List > mptnn0fsuppd | Structured version Visualization version GIF version |
Description: A mapping from the nonnegative integers is finitely supported under certain conditions. (Contributed by AV, 2-Dec-2019.) (Revised by AV, 23-Dec-2019.) |
Ref | Expression |
---|---|
mptnn0fsupp.0 | ⊢ (𝜑 → 0 ∈ 𝑉) |
mptnn0fsupp.c | ⊢ ((𝜑 ∧ 𝑘 ∈ ℕ0) → 𝐶 ∈ 𝐵) |
mptnn0fsuppd.d | ⊢ (𝑘 = 𝑥 → 𝐶 = 𝐷) |
mptnn0fsuppd.s | ⊢ (𝜑 → ∃𝑠 ∈ ℕ0 ∀𝑥 ∈ ℕ0 (𝑠 < 𝑥 → 𝐷 = 0 )) |
Ref | Expression |
---|---|
mptnn0fsuppd | ⊢ (𝜑 → (𝑘 ∈ ℕ0 ↦ 𝐶) finSupp 0 ) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | mptnn0fsupp.0 | . 2 ⊢ (𝜑 → 0 ∈ 𝑉) | |
2 | mptnn0fsupp.c | . 2 ⊢ ((𝜑 ∧ 𝑘 ∈ ℕ0) → 𝐶 ∈ 𝐵) | |
3 | mptnn0fsuppd.s | . . 3 ⊢ (𝜑 → ∃𝑠 ∈ ℕ0 ∀𝑥 ∈ ℕ0 (𝑠 < 𝑥 → 𝐷 = 0 )) | |
4 | vex 3450 | . . . . . . . 8 ⊢ 𝑥 ∈ V | |
5 | mptnn0fsuppd.d | . . . . . . . 8 ⊢ (𝑘 = 𝑥 → 𝐶 = 𝐷) | |
6 | 4, 5 | csbie 3894 | . . . . . . 7 ⊢ ⦋𝑥 / 𝑘⦌𝐶 = 𝐷 |
7 | id 22 | . . . . . . 7 ⊢ (𝐷 = 0 → 𝐷 = 0 ) | |
8 | 6, 7 | eqtrid 2783 | . . . . . 6 ⊢ (𝐷 = 0 → ⦋𝑥 / 𝑘⦌𝐶 = 0 ) |
9 | 8 | imim2i 16 | . . . . 5 ⊢ ((𝑠 < 𝑥 → 𝐷 = 0 ) → (𝑠 < 𝑥 → ⦋𝑥 / 𝑘⦌𝐶 = 0 )) |
10 | 9 | ralimi 3082 | . . . 4 ⊢ (∀𝑥 ∈ ℕ0 (𝑠 < 𝑥 → 𝐷 = 0 ) → ∀𝑥 ∈ ℕ0 (𝑠 < 𝑥 → ⦋𝑥 / 𝑘⦌𝐶 = 0 )) |
11 | 10 | reximi 3083 | . . 3 ⊢ (∃𝑠 ∈ ℕ0 ∀𝑥 ∈ ℕ0 (𝑠 < 𝑥 → 𝐷 = 0 ) → ∃𝑠 ∈ ℕ0 ∀𝑥 ∈ ℕ0 (𝑠 < 𝑥 → ⦋𝑥 / 𝑘⦌𝐶 = 0 )) |
12 | 3, 11 | syl 17 | . 2 ⊢ (𝜑 → ∃𝑠 ∈ ℕ0 ∀𝑥 ∈ ℕ0 (𝑠 < 𝑥 → ⦋𝑥 / 𝑘⦌𝐶 = 0 )) |
13 | 1, 2, 12 | mptnn0fsupp 13912 | 1 ⊢ (𝜑 → (𝑘 ∈ ℕ0 ↦ 𝐶) finSupp 0 ) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 396 = wceq 1541 ∈ wcel 2106 ∀wral 3060 ∃wrex 3069 ⦋csb 3858 class class class wbr 5110 ↦ cmpt 5193 finSupp cfsupp 9312 < clt 11198 ℕ0cn0 12422 |
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 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2702 ax-rep 5247 ax-sep 5261 ax-nul 5268 ax-pow 5325 ax-pr 5389 ax-un 7677 ax-cnex 11116 ax-resscn 11117 ax-1cn 11118 ax-icn 11119 ax-addcl 11120 ax-addrcl 11121 ax-mulcl 11122 ax-mulrcl 11123 ax-mulcom 11124 ax-addass 11125 ax-mulass 11126 ax-distr 11127 ax-i2m1 11128 ax-1ne0 11129 ax-1rid 11130 ax-rnegex 11131 ax-rrecex 11132 ax-cnre 11133 ax-pre-lttri 11134 ax-pre-lttrn 11135 ax-pre-ltadd 11136 ax-pre-mulgt0 11137 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 846 df-3or 1088 df-3an 1089 df-tru 1544 df-fal 1554 df-ex 1782 df-nf 1786 df-sb 2068 df-mo 2533 df-eu 2562 df-clab 2709 df-cleq 2723 df-clel 2809 df-nfc 2884 df-ne 2940 df-nel 3046 df-ral 3061 df-rex 3070 df-rmo 3351 df-reu 3352 df-rab 3406 df-v 3448 df-sbc 3743 df-csb 3859 df-dif 3916 df-un 3918 df-in 3920 df-ss 3930 df-pss 3932 df-nul 4288 df-if 4492 df-pw 4567 df-sn 4592 df-pr 4594 df-op 4598 df-uni 4871 df-iun 4961 df-br 5111 df-opab 5173 df-mpt 5194 df-tr 5228 df-id 5536 df-eprel 5542 df-po 5550 df-so 5551 df-fr 5593 df-we 5595 df-xp 5644 df-rel 5645 df-cnv 5646 df-co 5647 df-dm 5648 df-rn 5649 df-res 5650 df-ima 5651 df-pred 6258 df-ord 6325 df-on 6326 df-lim 6327 df-suc 6328 df-iota 6453 df-fun 6503 df-fn 6504 df-f 6505 df-f1 6506 df-fo 6507 df-f1o 6508 df-fv 6509 df-riota 7318 df-ov 7365 df-oprab 7366 df-mpo 7367 df-om 7808 df-1st 7926 df-2nd 7927 df-supp 8098 df-frecs 8217 df-wrecs 8248 df-recs 8322 df-rdg 8361 df-1o 8417 df-er 8655 df-en 8891 df-dom 8892 df-sdom 8893 df-fin 8894 df-fsupp 9313 df-pnf 11200 df-mnf 11201 df-xr 11202 df-ltxr 11203 df-le 11204 df-sub 11396 df-neg 11397 df-nn 12163 df-n0 12423 df-z 12509 df-uz 12773 df-fz 13435 |
This theorem is referenced by: decpmatfsupp 22155 decpmatmulsumfsupp 22159 pmatcollpw1lem1 22160 pm2mpmhmlem1 22204 cpmidpmatlem3 22258 evls1fpws 32348 |
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