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| Mirrors > Home > MPE Home > Th. List > Mathboxes > bcccl | Structured version Visualization version GIF version | ||
| Description: Closure of the generalized binomial coefficient. (Contributed by Steve Rodriguez, 22-Apr-2020.) |
| Ref | Expression |
|---|---|
| bccval.c | ⊢ (𝜑 → 𝐶 ∈ ℂ) |
| bccval.k | ⊢ (𝜑 → 𝐾 ∈ ℕ0) |
| Ref | Expression |
|---|---|
| bcccl | ⊢ (𝜑 → (𝐶C𝑐𝐾) ∈ ℂ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | bccval.c | . . 3 ⊢ (𝜑 → 𝐶 ∈ ℂ) | |
| 2 | bccval.k | . . 3 ⊢ (𝜑 → 𝐾 ∈ ℕ0) | |
| 3 | 1, 2 | bccval 44753 | . 2 ⊢ (𝜑 → (𝐶C𝑐𝐾) = ((𝐶 FallFac 𝐾) / (!‘𝐾))) |
| 4 | fallfaccl 15970 | . . . 4 ⊢ ((𝐶 ∈ ℂ ∧ 𝐾 ∈ ℕ0) → (𝐶 FallFac 𝐾) ∈ ℂ) | |
| 5 | 1, 2, 4 | syl2anc 585 | . . 3 ⊢ (𝜑 → (𝐶 FallFac 𝐾) ∈ ℂ) |
| 6 | faccl 14234 | . . . . 5 ⊢ (𝐾 ∈ ℕ0 → (!‘𝐾) ∈ ℕ) | |
| 7 | 2, 6 | syl 17 | . . . 4 ⊢ (𝜑 → (!‘𝐾) ∈ ℕ) |
| 8 | 7 | nncnd 12179 | . . 3 ⊢ (𝜑 → (!‘𝐾) ∈ ℂ) |
| 9 | 7 | nnne0d 12216 | . . 3 ⊢ (𝜑 → (!‘𝐾) ≠ 0) |
| 10 | 5, 8, 9 | divcld 11920 | . 2 ⊢ (𝜑 → ((𝐶 FallFac 𝐾) / (!‘𝐾)) ∈ ℂ) |
| 11 | 3, 10 | eqeltrd 2835 | 1 ⊢ (𝜑 → (𝐶C𝑐𝐾) ∈ ℂ) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∈ wcel 2114 ‘cfv 6487 (class class class)co 7356 ℂcc 11025 / cdiv 11796 ℕcn 12163 ℕ0cn0 12426 !cfa 14224 FallFac cfallfac 15958 C𝑐cbcc 44751 |
| 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 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2184 ax-ext 2707 ax-rep 5201 ax-sep 5220 ax-nul 5230 ax-pow 5296 ax-pr 5364 ax-un 7678 ax-inf2 9551 ax-cnex 11083 ax-resscn 11084 ax-1cn 11085 ax-icn 11086 ax-addcl 11087 ax-addrcl 11088 ax-mulcl 11089 ax-mulrcl 11090 ax-mulcom 11091 ax-addass 11092 ax-mulass 11093 ax-distr 11094 ax-i2m1 11095 ax-1ne0 11096 ax-1rid 11097 ax-rnegex 11098 ax-rrecex 11099 ax-cnre 11100 ax-pre-lttri 11101 ax-pre-lttrn 11102 ax-pre-ltadd 11103 ax-pre-mulgt0 11104 ax-pre-sup 11105 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2538 df-eu 2568 df-clab 2714 df-cleq 2727 df-clel 2810 df-nfc 2884 df-ne 2931 df-nel 3035 df-ral 3050 df-rex 3060 df-rmo 3340 df-reu 3341 df-rab 3388 df-v 3429 df-sbc 3726 df-csb 3834 df-dif 3888 df-un 3890 df-in 3892 df-ss 3902 df-pss 3905 df-nul 4264 df-if 4457 df-pw 4533 df-sn 4558 df-pr 4560 df-op 4564 df-uni 4841 df-int 4880 df-iun 4925 df-br 5075 df-opab 5137 df-mpt 5156 df-tr 5182 df-id 5515 df-eprel 5520 df-po 5528 df-so 5529 df-fr 5573 df-se 5574 df-we 5575 df-xp 5626 df-rel 5627 df-cnv 5628 df-co 5629 df-dm 5630 df-rn 5631 df-res 5632 df-ima 5633 df-pred 6254 df-ord 6315 df-on 6316 df-lim 6317 df-suc 6318 df-iota 6443 df-fun 6489 df-fn 6490 df-f 6491 df-f1 6492 df-fo 6493 df-f1o 6494 df-fv 6495 df-isom 6496 df-riota 7313 df-ov 7359 df-oprab 7360 df-mpo 7361 df-om 7807 df-1st 7931 df-2nd 7932 df-frecs 8220 df-wrecs 8251 df-recs 8300 df-rdg 8338 df-1o 8394 df-er 8632 df-en 8883 df-dom 8884 df-sdom 8885 df-fin 8886 df-sup 9344 df-oi 9414 df-card 9852 df-pnf 11170 df-mnf 11171 df-xr 11172 df-ltxr 11173 df-le 11174 df-sub 11368 df-neg 11369 df-div 11797 df-nn 12164 df-2 12233 df-3 12234 df-n0 12427 df-z 12514 df-uz 12778 df-rp 12932 df-fz 13451 df-fzo 13598 df-seq 13953 df-exp 14013 df-fac 14225 df-hash 14282 df-cj 15050 df-re 15051 df-im 15052 df-sqrt 15186 df-abs 15187 df-clim 15439 df-prod 15858 df-fallfac 15961 df-bcc 44752 |
| This theorem is referenced by: bccm1k 44757 binomcxplemnn0 44764 binomcxplemfrat 44766 binomcxplemradcnv 44767 binomcxplemcvg 44769 binomcxplemdvsum 44770 binomcxplemnotnn0 44771 |
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