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Mirrors > Home > MPE Home > Th. List > fprodcllemf | Structured version Visualization version GIF version |
Description: Finite product closure lemma. A version of fprodcllem 15589 using bound-variable hypotheses instead of distinct variable conditions. (Contributed by Glauco Siliprandi, 5-Apr-2020.) |
Ref | Expression |
---|---|
fprodcllemf.ph | ⊢ Ⅎ𝑘𝜑 |
fprodcllemf.s | ⊢ (𝜑 → 𝑆 ⊆ ℂ) |
fprodcllemf.xy | ⊢ ((𝜑 ∧ (𝑥 ∈ 𝑆 ∧ 𝑦 ∈ 𝑆)) → (𝑥 · 𝑦) ∈ 𝑆) |
fprodcllemf.a | ⊢ (𝜑 → 𝐴 ∈ Fin) |
fprodcllemf.b | ⊢ ((𝜑 ∧ 𝑘 ∈ 𝐴) → 𝐵 ∈ 𝑆) |
fprodcllemf.1 | ⊢ (𝜑 → 1 ∈ 𝑆) |
Ref | Expression |
---|---|
fprodcllemf | ⊢ (𝜑 → ∏𝑘 ∈ 𝐴 𝐵 ∈ 𝑆) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | nfcv 2906 | . . 3 ⊢ Ⅎ𝑗𝐵 | |
2 | nfcsb1v 3853 | . . 3 ⊢ Ⅎ𝑘⦋𝑗 / 𝑘⦌𝐵 | |
3 | csbeq1a 3842 | . . 3 ⊢ (𝑘 = 𝑗 → 𝐵 = ⦋𝑗 / 𝑘⦌𝐵) | |
4 | 1, 2, 3 | cbvprodi 15555 | . 2 ⊢ ∏𝑘 ∈ 𝐴 𝐵 = ∏𝑗 ∈ 𝐴 ⦋𝑗 / 𝑘⦌𝐵 |
5 | fprodcllemf.s | . . 3 ⊢ (𝜑 → 𝑆 ⊆ ℂ) | |
6 | fprodcllemf.xy | . . 3 ⊢ ((𝜑 ∧ (𝑥 ∈ 𝑆 ∧ 𝑦 ∈ 𝑆)) → (𝑥 · 𝑦) ∈ 𝑆) | |
7 | fprodcllemf.a | . . 3 ⊢ (𝜑 → 𝐴 ∈ Fin) | |
8 | fprodcllemf.ph | . . . . . 6 ⊢ Ⅎ𝑘𝜑 | |
9 | fprodcllemf.b | . . . . . . 7 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝐴) → 𝐵 ∈ 𝑆) | |
10 | 9 | ex 412 | . . . . . 6 ⊢ (𝜑 → (𝑘 ∈ 𝐴 → 𝐵 ∈ 𝑆)) |
11 | 8, 10 | ralrimi 3139 | . . . . 5 ⊢ (𝜑 → ∀𝑘 ∈ 𝐴 𝐵 ∈ 𝑆) |
12 | rspsbc 3808 | . . . . 5 ⊢ (𝑗 ∈ 𝐴 → (∀𝑘 ∈ 𝐴 𝐵 ∈ 𝑆 → [𝑗 / 𝑘]𝐵 ∈ 𝑆)) | |
13 | 11, 12 | mpan9 506 | . . . 4 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝐴) → [𝑗 / 𝑘]𝐵 ∈ 𝑆) |
14 | sbcel1g 4344 | . . . . 5 ⊢ (𝑗 ∈ V → ([𝑗 / 𝑘]𝐵 ∈ 𝑆 ↔ ⦋𝑗 / 𝑘⦌𝐵 ∈ 𝑆)) | |
15 | 14 | elv 3428 | . . . 4 ⊢ ([𝑗 / 𝑘]𝐵 ∈ 𝑆 ↔ ⦋𝑗 / 𝑘⦌𝐵 ∈ 𝑆) |
16 | 13, 15 | sylib 217 | . . 3 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝐴) → ⦋𝑗 / 𝑘⦌𝐵 ∈ 𝑆) |
17 | fprodcllemf.1 | . . 3 ⊢ (𝜑 → 1 ∈ 𝑆) | |
18 | 5, 6, 7, 16, 17 | fprodcllem 15589 | . 2 ⊢ (𝜑 → ∏𝑗 ∈ 𝐴 ⦋𝑗 / 𝑘⦌𝐵 ∈ 𝑆) |
19 | 4, 18 | eqeltrid 2843 | 1 ⊢ (𝜑 → ∏𝑘 ∈ 𝐴 𝐵 ∈ 𝑆) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 205 ∧ wa 395 Ⅎwnf 1787 ∈ wcel 2108 ∀wral 3063 Vcvv 3422 [wsbc 3711 ⦋csb 3828 ⊆ wss 3883 (class class class)co 7255 Fincfn 8691 ℂcc 10800 1c1 10803 · cmul 10807 ∏cprod 15543 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1799 ax-4 1813 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2110 ax-9 2118 ax-10 2139 ax-11 2156 ax-12 2173 ax-ext 2709 ax-rep 5205 ax-sep 5218 ax-nul 5225 ax-pow 5283 ax-pr 5347 ax-un 7566 ax-inf2 9329 ax-cnex 10858 ax-resscn 10859 ax-1cn 10860 ax-icn 10861 ax-addcl 10862 ax-addrcl 10863 ax-mulcl 10864 ax-mulrcl 10865 ax-mulcom 10866 ax-addass 10867 ax-mulass 10868 ax-distr 10869 ax-i2m1 10870 ax-1ne0 10871 ax-1rid 10872 ax-rnegex 10873 ax-rrecex 10874 ax-cnre 10875 ax-pre-lttri 10876 ax-pre-lttrn 10877 ax-pre-ltadd 10878 ax-pre-mulgt0 10879 ax-pre-sup 10880 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3or 1086 df-3an 1087 df-tru 1542 df-fal 1552 df-ex 1784 df-nf 1788 df-sb 2069 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2817 df-nfc 2888 df-ne 2943 df-nel 3049 df-ral 3068 df-rex 3069 df-reu 3070 df-rmo 3071 df-rab 3072 df-v 3424 df-sbc 3712 df-csb 3829 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-pss 3902 df-nul 4254 df-if 4457 df-pw 4532 df-sn 4559 df-pr 4561 df-tp 4563 df-op 4565 df-uni 4837 df-int 4877 df-iun 4923 df-br 5071 df-opab 5133 df-mpt 5154 df-tr 5188 df-id 5480 df-eprel 5486 df-po 5494 df-so 5495 df-fr 5535 df-se 5536 df-we 5537 df-xp 5586 df-rel 5587 df-cnv 5588 df-co 5589 df-dm 5590 df-rn 5591 df-res 5592 df-ima 5593 df-pred 6191 df-ord 6254 df-on 6255 df-lim 6256 df-suc 6257 df-iota 6376 df-fun 6420 df-fn 6421 df-f 6422 df-f1 6423 df-fo 6424 df-f1o 6425 df-fv 6426 df-isom 6427 df-riota 7212 df-ov 7258 df-oprab 7259 df-mpo 7260 df-om 7688 df-1st 7804 df-2nd 7805 df-frecs 8068 df-wrecs 8099 df-recs 8173 df-rdg 8212 df-1o 8267 df-er 8456 df-en 8692 df-dom 8693 df-sdom 8694 df-fin 8695 df-sup 9131 df-oi 9199 df-card 9628 df-pnf 10942 df-mnf 10943 df-xr 10944 df-ltxr 10945 df-le 10946 df-sub 11137 df-neg 11138 df-div 11563 df-nn 11904 df-2 11966 df-3 11967 df-n0 12164 df-z 12250 df-uz 12512 df-rp 12660 df-fz 13169 df-fzo 13312 df-seq 13650 df-exp 13711 df-hash 13973 df-cj 14738 df-re 14739 df-im 14740 df-sqrt 14874 df-abs 14875 df-clim 15125 df-prod 15544 |
This theorem is referenced by: fprodreclf 15597 fprodn0f 15629 fprodclf 15630 fprodge0 15631 fprodge1 15633 |
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