Theorem plybss 26159

Description: Reverse closure of the parameter 𝑆 of the polynomial set function. (Contributed by Mario Carneiro, 22-Jul-2014.)

Assertion

Ref	Expression
plybss	⊢ (𝐹 ∈ (Poly‘𝑆) → 𝑆 ⊆ ℂ)

Proof of Theorem plybss

Dummy variables 𝑘 𝑎 𝑛 𝑧 𝑓 𝑥 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		df-ply 26153	. . 3 ⊢ Poly = (𝑥 ∈ 𝒫 ℂ ↦ {𝑓 ∣ ∃𝑛 ∈ ℕ0 ∃𝑎 ∈ ((𝑥 ∪ {0}) ↑m ℕ0)𝑓 = (𝑧 ∈ ℂ ↦ Σ𝑘 ∈ (0...𝑛)((𝑎‘𝑘) · (𝑧↑𝑘)))})
2	1	mptrcl 6957	. 2 ⊢ (𝐹 ∈ (Poly‘𝑆) → 𝑆 ∈ 𝒫 ℂ)
3	2	elpwid 4550	1 ⊢ (𝐹 ∈ (Poly‘𝑆) → 𝑆 ⊆ ℂ)

Syntax hints:   → wi 4   = wceq 1542   ∈ wcel 2114  {cab 2714  ∃wrex 3061   ∪ cun 3887   ⊆ wss 3889  𝒫 cpw 4541  {csn 4567   ↦ cmpt 5166  ‘cfv 6498  (class class class)co 7367   ↑_m cmap 8773  ℂcc 11036  0cc0 11038   · cmul 11043  ℕ₀cn0 12437  ...cfz 13461  ↑cexp 14023  Σcsu 15648  Polycply 26149

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 2185  ax-ext 2708  ax-sep 5231  ax-nul 5241  ax-pr 5375

This theorem depends on definitions:  df-bi 207  df-an 396  df-or 849  df-3an 1089  df-tru 1545  df-fal 1555  df-ex 1782  df-nf 1786  df-sb 2069  df-mo 2539  df-eu 2569  df-clab 2715  df-cleq 2728  df-clel 2811  df-nfc 2885  df-ne 2933  df-rab 3390  df-v 3431  df-dif 3892  df-un 3894  df-in 3896  df-ss 3906  df-nul 4274  df-if 4467  df-pw 4543  df-sn 4568  df-pr 4570  df-op 4574  df-uni 4851  df-br 5086  df-opab 5148  df-mpt 5167  df-xp 5637  df-rel 5638  df-cnv 5639  df-dm 5641  df-rn 5642  df-res 5643  df-ima 5644  df-iota 6454  df-fv 6506  df-ply 26153

This theorem is referenced by:  elply  26160  plyf  26163  plyssc  26165  plyaddlem  26180  plymullem  26181  plysub  26184  dgrlem  26194  coeidlem  26202  plyco  26206  plycj  26242  plycjOLD  26244  plyreres  26249  plydivlem3  26261  plydivlem4  26262  elmnc  43564