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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 16127 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 2922 | . . 3 ⊢ Ⅎ𝑗𝐵 | |
| 2 | nfcsb1v 3871 | . . 3 ⊢ Ⅎ𝑘⦋𝑗 / 𝑘⦌𝐵 | |
| 3 | csbeq1a 3861 | . . 3 ⊢ (𝑘 = 𝑗 → 𝐵 = ⦋𝑗 / 𝑘⦌𝐵) | |
| 4 | 1, 2, 3 | cbvprodi 16093 | . 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 418 | . . . . . 6 ⊢ (𝜑 → (𝑘 ∈ 𝐴 → 𝐵 ∈ 𝑆)) |
| 11 | 8, 10 | ralrimi 3260 | . . . . 5 ⊢ (𝜑 → ∀𝑘 ∈ 𝐴 𝐵 ∈ 𝑆) |
| 12 | rspsbc 3826 | . . . . 5 ⊢ (𝑗 ∈ 𝐴 → (∀𝑘 ∈ 𝐴 𝐵 ∈ 𝑆 → [𝑗 / 𝑘]𝐵 ∈ 𝑆)) | |
| 13 | 11, 12 | mpan9 516 | . . . 4 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝐴) → [𝑗 / 𝑘]𝐵 ∈ 𝑆) |
| 14 | sbcel1g 4373 | . . . . 5 ⊢ (𝑗 ∈ V → ([𝑗 / 𝑘]𝐵 ∈ 𝑆 ↔ ⦋𝑗 / 𝑘⦌𝐵 ∈ 𝑆)) | |
| 15 | 14 | elv 3455 | . . . 4 ⊢ ([𝑗 / 𝑘]𝐵 ∈ 𝑆 ↔ ⦋𝑗 / 𝑘⦌𝐵 ∈ 𝑆) |
| 16 | 13, 15 | sylib 221 | . . 3 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝐴) → ⦋𝑗 / 𝑘⦌𝐵 ∈ 𝑆) |
| 17 | fprodcllemf.1 | . . 3 ⊢ (𝜑 → 1 ∈ 𝑆) | |
| 18 | 5, 6, 7, 16, 17 | fprodcllem 16127 | . 2 ⊢ (𝜑 → ∏𝑗 ∈ 𝐴 ⦋𝑗 / 𝑘⦌𝐵 ∈ 𝑆) |
| 19 | 4, 18 | eqeltrid 2864 | 1 ⊢ (𝜑 → ∏𝑘 ∈ 𝐴 𝐵 ∈ 𝑆) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ↔ wb 209 ∧ wa 401 Ⅎwnf 1815 ∈ wcel 2144 ∀wral 3076 Vcvv 3450 [wsbc 3738 ⦋csb 3847 ⊆ wss 3896 (class class class)co 7424 Fincfn 8981 ℂcc 11205 1c1 11208 · cmul 11212 ∏cprod 16081 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-rep 5231 ax-sep 5248 ax-nul 5259 ax-pow 5327 ax-pr 5391 ax-un 7755 ax-inf2 9649 ax-cnex 11263 ax-resscn 11264 ax-1cn 11265 ax-icn 11266 ax-addcl 11267 ax-addrcl 11268 ax-mulcl 11269 ax-mulrcl 11270 ax-mulcom 11271 ax-addass 11272 ax-mulass 11273 ax-distr 11274 ax-i2m1 11275 ax-1ne0 11276 ax-1rid 11277 ax-rnegex 11278 ax-rrecex 11279 ax-cnre 11280 ax-pre-lttri 11281 ax-pre-lttrn 11282 ax-pre-ltadd 11283 ax-pre-mulgt0 11284 ax-pre-sup 11285 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-nel 3062 df-ral 3077 df-rex 3087 df-rmo 3365 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3739 df-csb 3848 df-ss 3897 df-pss 4013 df-dif 4046 df-in 4090 df-un 4150 df-nul 4278 df-if 4482 df-pw 4558 df-sn 4585 df-pr 4587 df-op 4835 df-uni 4867 df-int 4907 df-iun 4952 df-br 5103 df-opab 5167 df-mpt 5186 df-tr 5212 df-id 5546 df-eprel 5551 df-po 5559 df-so 5560 df-fr 5604 df-se 5605 df-we 5606 df-xp 5657 df-rel 5658 df-cnv 5659 df-co 5660 df-dm 5661 df-rn 5662 df-res 5663 df-ima 5664 df-pred 6307 df-ord 6368 df-on 6369 df-lim 6370 df-suc 6371 df-iota 6497 df-fun 6545 df-fn 6546 df-f 6547 df-f1 6548 df-fo 6549 df-f1o 6550 df-fv 6551 df-isom 6552 df-riota 7381 df-ov 7427 df-oprab 7428 df-mpo 7429 df-om 7882 df-1st 8005 df-2nd 8006 df-frecs 8307 df-wrecs 8338 df-recs 8387 df-rdg 8426 df-1o 8484 df-er 8725 df-en 8982 df-dom 8983 df-sdom 8984 df-fin 8985 df-sup 9441 df-oi 9511 df-card 10027 df-pnf 11352 df-mnf 11353 df-xr 11354 df-ltxr 11355 df-le 11356 df-sub 11550 df-neg 11551 df-div 11981 df-nn 12343 df-2 12412 df-3 12413 df-n0 12614 df-z 12701 df-uz 12973 df-rp 13128 df-fz 13647 df-fzo 13796 df-seq 14152 df-exp 14212 df-hash 14482 df-cj 15275 df-re 15276 df-im 15277 df-sqrt 15411 df-abs 15412 df-clim 15664 df-prod 16082 |
| This theorem is used by: fprodreclf 16135 fprodn0f 16167 fprodclf 16168 fprodge0 16169 fprodge1 16171 |
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