MPE Home Metamath Proof Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  MPE Home  >  Th. List  >  fta1lem Structured version   Visualization version   GIF version

Theorem fta1lem 24000
Description: Lemma for fta1 24001. (Contributed by Mario Carneiro, 26-Jul-2014.)
Hypotheses
Ref Expression
fta1.1 𝑅 = (𝐹 “ {0})
fta1.2 (𝜑𝐷 ∈ ℕ0)
fta1.3 (𝜑𝐹 ∈ ((Poly‘ℂ) ∖ {0𝑝}))
fta1.4 (𝜑 → (deg‘𝐹) = (𝐷 + 1))
fta1.5 (𝜑𝐴 ∈ (𝐹 “ {0}))
fta1.6 (𝜑 → ∀𝑔 ∈ ((Poly‘ℂ) ∖ {0𝑝})((deg‘𝑔) = 𝐷 → ((𝑔 “ {0}) ∈ Fin ∧ (#‘(𝑔 “ {0})) ≤ (deg‘𝑔))))
Assertion
Ref Expression
fta1lem (𝜑 → (𝑅 ∈ Fin ∧ (#‘𝑅) ≤ (deg‘𝐹)))
Distinct variable groups:   𝐴,𝑔   𝐷,𝑔   𝑔,𝐹
Allowed substitution hints:   𝜑(𝑔)   𝑅(𝑔)

Proof of Theorem fta1lem
Dummy variable 𝑥 is distinct from all other variables.
StepHypRef Expression
1 fta1.3 . . . . . . . . . 10 (𝜑𝐹 ∈ ((Poly‘ℂ) ∖ {0𝑝}))
2 eldifsn 4294 . . . . . . . . . 10 (𝐹 ∈ ((Poly‘ℂ) ∖ {0𝑝}) ↔ (𝐹 ∈ (Poly‘ℂ) ∧ 𝐹 ≠ 0𝑝))
31, 2sylib 208 . . . . . . . . 9 (𝜑 → (𝐹 ∈ (Poly‘ℂ) ∧ 𝐹 ≠ 0𝑝))
43simpld 475 . . . . . . . 8 (𝜑𝐹 ∈ (Poly‘ℂ))
5 fta1.5 . . . . . . . . . 10 (𝜑𝐴 ∈ (𝐹 “ {0}))
6 plyf 23892 . . . . . . . . . . 11 (𝐹 ∈ (Poly‘ℂ) → 𝐹:ℂ⟶ℂ)
7 ffn 6012 . . . . . . . . . . 11 (𝐹:ℂ⟶ℂ → 𝐹 Fn ℂ)
8 fniniseg 6304 . . . . . . . . . . 11 (𝐹 Fn ℂ → (𝐴 ∈ (𝐹 “ {0}) ↔ (𝐴 ∈ ℂ ∧ (𝐹𝐴) = 0)))
94, 6, 7, 84syl 19 . . . . . . . . . 10 (𝜑 → (𝐴 ∈ (𝐹 “ {0}) ↔ (𝐴 ∈ ℂ ∧ (𝐹𝐴) = 0)))
105, 9mpbid 222 . . . . . . . . 9 (𝜑 → (𝐴 ∈ ℂ ∧ (𝐹𝐴) = 0))
1110simpld 475 . . . . . . . 8 (𝜑𝐴 ∈ ℂ)
1210simprd 479 . . . . . . . 8 (𝜑 → (𝐹𝐴) = 0)
13 eqid 2621 . . . . . . . . 9 (Xp𝑓 − (ℂ × {𝐴})) = (Xp𝑓 − (ℂ × {𝐴}))
1413facth 23999 . . . . . . . 8 ((𝐹 ∈ (Poly‘ℂ) ∧ 𝐴 ∈ ℂ ∧ (𝐹𝐴) = 0) → 𝐹 = ((Xp𝑓 − (ℂ × {𝐴})) ∘𝑓 · (𝐹 quot (Xp𝑓 − (ℂ × {𝐴})))))
154, 11, 12, 14syl3anc 1323 . . . . . . 7 (𝜑𝐹 = ((Xp𝑓 − (ℂ × {𝐴})) ∘𝑓 · (𝐹 quot (Xp𝑓 − (ℂ × {𝐴})))))
1615cnveqd 5268 . . . . . 6 (𝜑𝐹 = ((Xp𝑓 − (ℂ × {𝐴})) ∘𝑓 · (𝐹 quot (Xp𝑓 − (ℂ × {𝐴})))))
1716imaeq1d 5434 . . . . 5 (𝜑 → (𝐹 “ {0}) = (((Xp𝑓 − (ℂ × {𝐴})) ∘𝑓 · (𝐹 quot (Xp𝑓 − (ℂ × {𝐴})))) “ {0}))
18 cnex 9977 . . . . . . 7 ℂ ∈ V
1918a1i 11 . . . . . 6 (𝜑 → ℂ ∈ V)
20 ssid 3609 . . . . . . . . 9 ℂ ⊆ ℂ
21 ax-1cn 9954 . . . . . . . . 9 1 ∈ ℂ
22 plyid 23903 . . . . . . . . 9 ((ℂ ⊆ ℂ ∧ 1 ∈ ℂ) → Xp ∈ (Poly‘ℂ))
2320, 21, 22mp2an 707 . . . . . . . 8 Xp ∈ (Poly‘ℂ)
24 plyconst 23900 . . . . . . . . 9 ((ℂ ⊆ ℂ ∧ 𝐴 ∈ ℂ) → (ℂ × {𝐴}) ∈ (Poly‘ℂ))
2520, 11, 24sylancr 694 . . . . . . . 8 (𝜑 → (ℂ × {𝐴}) ∈ (Poly‘ℂ))
26 plysubcl 23916 . . . . . . . 8 ((Xp ∈ (Poly‘ℂ) ∧ (ℂ × {𝐴}) ∈ (Poly‘ℂ)) → (Xp𝑓 − (ℂ × {𝐴})) ∈ (Poly‘ℂ))
2723, 25, 26sylancr 694 . . . . . . 7 (𝜑 → (Xp𝑓 − (ℂ × {𝐴})) ∈ (Poly‘ℂ))
28 plyf 23892 . . . . . . 7 ((Xp𝑓 − (ℂ × {𝐴})) ∈ (Poly‘ℂ) → (Xp𝑓 − (ℂ × {𝐴})):ℂ⟶ℂ)
2927, 28syl 17 . . . . . 6 (𝜑 → (Xp𝑓 − (ℂ × {𝐴})):ℂ⟶ℂ)
3013plyremlem 23997 . . . . . . . . . . . 12 (𝐴 ∈ ℂ → ((Xp𝑓 − (ℂ × {𝐴})) ∈ (Poly‘ℂ) ∧ (deg‘(Xp𝑓 − (ℂ × {𝐴}))) = 1 ∧ ((Xp𝑓 − (ℂ × {𝐴})) “ {0}) = {𝐴}))
3111, 30syl 17 . . . . . . . . . . 11 (𝜑 → ((Xp𝑓 − (ℂ × {𝐴})) ∈ (Poly‘ℂ) ∧ (deg‘(Xp𝑓 − (ℂ × {𝐴}))) = 1 ∧ ((Xp𝑓 − (ℂ × {𝐴})) “ {0}) = {𝐴}))
3231simp2d 1072 . . . . . . . . . 10 (𝜑 → (deg‘(Xp𝑓 − (ℂ × {𝐴}))) = 1)
33 ax-1ne0 9965 . . . . . . . . . . 11 1 ≠ 0
3433a1i 11 . . . . . . . . . 10 (𝜑 → 1 ≠ 0)
3532, 34eqnetrd 2857 . . . . . . . . 9 (𝜑 → (deg‘(Xp𝑓 − (ℂ × {𝐴}))) ≠ 0)
36 fveq2 6158 . . . . . . . . . . 11 ((Xp𝑓 − (ℂ × {𝐴})) = 0𝑝 → (deg‘(Xp𝑓 − (ℂ × {𝐴}))) = (deg‘0𝑝))
37 dgr0 23956 . . . . . . . . . . 11 (deg‘0𝑝) = 0
3836, 37syl6eq 2671 . . . . . . . . . 10 ((Xp𝑓 − (ℂ × {𝐴})) = 0𝑝 → (deg‘(Xp𝑓 − (ℂ × {𝐴}))) = 0)
3938necon3i 2822 . . . . . . . . 9 ((deg‘(Xp𝑓 − (ℂ × {𝐴}))) ≠ 0 → (Xp𝑓 − (ℂ × {𝐴})) ≠ 0𝑝)
4035, 39syl 17 . . . . . . . 8 (𝜑 → (Xp𝑓 − (ℂ × {𝐴})) ≠ 0𝑝)
41 quotcl2 23995 . . . . . . . 8 ((𝐹 ∈ (Poly‘ℂ) ∧ (Xp𝑓 − (ℂ × {𝐴})) ∈ (Poly‘ℂ) ∧ (Xp𝑓 − (ℂ × {𝐴})) ≠ 0𝑝) → (𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) ∈ (Poly‘ℂ))
424, 27, 40, 41syl3anc 1323 . . . . . . 7 (𝜑 → (𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) ∈ (Poly‘ℂ))
43 plyf 23892 . . . . . . 7 ((𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) ∈ (Poly‘ℂ) → (𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))):ℂ⟶ℂ)
4442, 43syl 17 . . . . . 6 (𝜑 → (𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))):ℂ⟶ℂ)
45 ofmulrt 23975 . . . . . 6 ((ℂ ∈ V ∧ (Xp𝑓 − (ℂ × {𝐴})):ℂ⟶ℂ ∧ (𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))):ℂ⟶ℂ) → (((Xp𝑓 − (ℂ × {𝐴})) ∘𝑓 · (𝐹 quot (Xp𝑓 − (ℂ × {𝐴})))) “ {0}) = (((Xp𝑓 − (ℂ × {𝐴})) “ {0}) ∪ ((𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) “ {0})))
4619, 29, 44, 45syl3anc 1323 . . . . 5 (𝜑 → (((Xp𝑓 − (ℂ × {𝐴})) ∘𝑓 · (𝐹 quot (Xp𝑓 − (ℂ × {𝐴})))) “ {0}) = (((Xp𝑓 − (ℂ × {𝐴})) “ {0}) ∪ ((𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) “ {0})))
4731simp3d 1073 . . . . . 6 (𝜑 → ((Xp𝑓 − (ℂ × {𝐴})) “ {0}) = {𝐴})
4847uneq1d 3750 . . . . 5 (𝜑 → (((Xp𝑓 − (ℂ × {𝐴})) “ {0}) ∪ ((𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) “ {0})) = ({𝐴} ∪ ((𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) “ {0})))
4917, 46, 483eqtrd 2659 . . . 4 (𝜑 → (𝐹 “ {0}) = ({𝐴} ∪ ((𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) “ {0})))
50 fta1.1 . . . 4 𝑅 = (𝐹 “ {0})
51 uncom 3741 . . . 4 (((𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) “ {0}) ∪ {𝐴}) = ({𝐴} ∪ ((𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) “ {0}))
5249, 50, 513eqtr4g 2680 . . 3 (𝜑𝑅 = (((𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) “ {0}) ∪ {𝐴}))
533simprd 479 . . . . . . . . 9 (𝜑𝐹 ≠ 0𝑝)
5415eqcomd 2627 . . . . . . . . 9 (𝜑 → ((Xp𝑓 − (ℂ × {𝐴})) ∘𝑓 · (𝐹 quot (Xp𝑓 − (ℂ × {𝐴})))) = 𝐹)
55 0cnd 9993 . . . . . . . . . . 11 (𝜑 → 0 ∈ ℂ)
56 mul01 10175 . . . . . . . . . . . 12 (𝑥 ∈ ℂ → (𝑥 · 0) = 0)
5756adantl 482 . . . . . . . . . . 11 ((𝜑𝑥 ∈ ℂ) → (𝑥 · 0) = 0)
5819, 29, 55, 55, 57caofid1 6892 . . . . . . . . . 10 (𝜑 → ((Xp𝑓 − (ℂ × {𝐴})) ∘𝑓 · (ℂ × {0})) = (ℂ × {0}))
59 df-0p 23377 . . . . . . . . . . 11 0𝑝 = (ℂ × {0})
6059oveq2i 6626 . . . . . . . . . 10 ((Xp𝑓 − (ℂ × {𝐴})) ∘𝑓 · 0𝑝) = ((Xp𝑓 − (ℂ × {𝐴})) ∘𝑓 · (ℂ × {0}))
6158, 60, 593eqtr4g 2680 . . . . . . . . 9 (𝜑 → ((Xp𝑓 − (ℂ × {𝐴})) ∘𝑓 · 0𝑝) = 0𝑝)
6253, 54, 613netr4d 2867 . . . . . . . 8 (𝜑 → ((Xp𝑓 − (ℂ × {𝐴})) ∘𝑓 · (𝐹 quot (Xp𝑓 − (ℂ × {𝐴})))) ≠ ((Xp𝑓 − (ℂ × {𝐴})) ∘𝑓 · 0𝑝))
63 oveq2 6623 . . . . . . . . 9 ((𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) = 0𝑝 → ((Xp𝑓 − (ℂ × {𝐴})) ∘𝑓 · (𝐹 quot (Xp𝑓 − (ℂ × {𝐴})))) = ((Xp𝑓 − (ℂ × {𝐴})) ∘𝑓 · 0𝑝))
6463necon3i 2822 . . . . . . . 8 (((Xp𝑓 − (ℂ × {𝐴})) ∘𝑓 · (𝐹 quot (Xp𝑓 − (ℂ × {𝐴})))) ≠ ((Xp𝑓 − (ℂ × {𝐴})) ∘𝑓 · 0𝑝) → (𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) ≠ 0𝑝)
6562, 64syl 17 . . . . . . 7 (𝜑 → (𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) ≠ 0𝑝)
66 eldifsn 4294 . . . . . . 7 ((𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) ∈ ((Poly‘ℂ) ∖ {0𝑝}) ↔ ((𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) ∈ (Poly‘ℂ) ∧ (𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) ≠ 0𝑝))
6742, 65, 66sylanbrc 697 . . . . . 6 (𝜑 → (𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) ∈ ((Poly‘ℂ) ∖ {0𝑝}))
68 fta1.6 . . . . . 6 (𝜑 → ∀𝑔 ∈ ((Poly‘ℂ) ∖ {0𝑝})((deg‘𝑔) = 𝐷 → ((𝑔 “ {0}) ∈ Fin ∧ (#‘(𝑔 “ {0})) ≤ (deg‘𝑔))))
6921a1i 11 . . . . . . 7 (𝜑 → 1 ∈ ℂ)
70 dgrcl 23927 . . . . . . . . 9 ((𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) ∈ (Poly‘ℂ) → (deg‘(𝐹 quot (Xp𝑓 − (ℂ × {𝐴})))) ∈ ℕ0)
7142, 70syl 17 . . . . . . . 8 (𝜑 → (deg‘(𝐹 quot (Xp𝑓 − (ℂ × {𝐴})))) ∈ ℕ0)
7271nn0cnd 11313 . . . . . . 7 (𝜑 → (deg‘(𝐹 quot (Xp𝑓 − (ℂ × {𝐴})))) ∈ ℂ)
73 fta1.2 . . . . . . . 8 (𝜑𝐷 ∈ ℕ0)
7473nn0cnd 11313 . . . . . . 7 (𝜑𝐷 ∈ ℂ)
75 addcom 10182 . . . . . . . . 9 ((1 ∈ ℂ ∧ 𝐷 ∈ ℂ) → (1 + 𝐷) = (𝐷 + 1))
7621, 74, 75sylancr 694 . . . . . . . 8 (𝜑 → (1 + 𝐷) = (𝐷 + 1))
7715fveq2d 6162 . . . . . . . . 9 (𝜑 → (deg‘𝐹) = (deg‘((Xp𝑓 − (ℂ × {𝐴})) ∘𝑓 · (𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))))))
78 fta1.4 . . . . . . . . 9 (𝜑 → (deg‘𝐹) = (𝐷 + 1))
79 eqid 2621 . . . . . . . . . . 11 (deg‘(Xp𝑓 − (ℂ × {𝐴}))) = (deg‘(Xp𝑓 − (ℂ × {𝐴})))
80 eqid 2621 . . . . . . . . . . 11 (deg‘(𝐹 quot (Xp𝑓 − (ℂ × {𝐴})))) = (deg‘(𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))))
8179, 80dgrmul 23964 . . . . . . . . . 10 ((((Xp𝑓 − (ℂ × {𝐴})) ∈ (Poly‘ℂ) ∧ (Xp𝑓 − (ℂ × {𝐴})) ≠ 0𝑝) ∧ ((𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) ∈ (Poly‘ℂ) ∧ (𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) ≠ 0𝑝)) → (deg‘((Xp𝑓 − (ℂ × {𝐴})) ∘𝑓 · (𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))))) = ((deg‘(Xp𝑓 − (ℂ × {𝐴}))) + (deg‘(𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))))))
8227, 40, 42, 65, 81syl22anc 1324 . . . . . . . . 9 (𝜑 → (deg‘((Xp𝑓 − (ℂ × {𝐴})) ∘𝑓 · (𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))))) = ((deg‘(Xp𝑓 − (ℂ × {𝐴}))) + (deg‘(𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))))))
8377, 78, 823eqtr3d 2663 . . . . . . . 8 (𝜑 → (𝐷 + 1) = ((deg‘(Xp𝑓 − (ℂ × {𝐴}))) + (deg‘(𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))))))
8432oveq1d 6630 . . . . . . . 8 (𝜑 → ((deg‘(Xp𝑓 − (ℂ × {𝐴}))) + (deg‘(𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))))) = (1 + (deg‘(𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))))))
8576, 83, 843eqtrrd 2660 . . . . . . 7 (𝜑 → (1 + (deg‘(𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))))) = (1 + 𝐷))
8669, 72, 74, 85addcanad 10201 . . . . . 6 (𝜑 → (deg‘(𝐹 quot (Xp𝑓 − (ℂ × {𝐴})))) = 𝐷)
87 fveq2 6158 . . . . . . . . 9 (𝑔 = (𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) → (deg‘𝑔) = (deg‘(𝐹 quot (Xp𝑓 − (ℂ × {𝐴})))))
8887eqeq1d 2623 . . . . . . . 8 (𝑔 = (𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) → ((deg‘𝑔) = 𝐷 ↔ (deg‘(𝐹 quot (Xp𝑓 − (ℂ × {𝐴})))) = 𝐷))
89 cnveq 5266 . . . . . . . . . . 11 (𝑔 = (𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) → 𝑔 = (𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))))
9089imaeq1d 5434 . . . . . . . . . 10 (𝑔 = (𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) → (𝑔 “ {0}) = ((𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) “ {0}))
9190eleq1d 2683 . . . . . . . . 9 (𝑔 = (𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) → ((𝑔 “ {0}) ∈ Fin ↔ ((𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) “ {0}) ∈ Fin))
9290fveq2d 6162 . . . . . . . . . 10 (𝑔 = (𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) → (#‘(𝑔 “ {0})) = (#‘((𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) “ {0})))
9392, 87breq12d 4636 . . . . . . . . 9 (𝑔 = (𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) → ((#‘(𝑔 “ {0})) ≤ (deg‘𝑔) ↔ (#‘((𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) “ {0})) ≤ (deg‘(𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))))))
9491, 93anbi12d 746 . . . . . . . 8 (𝑔 = (𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) → (((𝑔 “ {0}) ∈ Fin ∧ (#‘(𝑔 “ {0})) ≤ (deg‘𝑔)) ↔ (((𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) “ {0}) ∈ Fin ∧ (#‘((𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) “ {0})) ≤ (deg‘(𝐹 quot (Xp𝑓 − (ℂ × {𝐴})))))))
9588, 94imbi12d 334 . . . . . . 7 (𝑔 = (𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) → (((deg‘𝑔) = 𝐷 → ((𝑔 “ {0}) ∈ Fin ∧ (#‘(𝑔 “ {0})) ≤ (deg‘𝑔))) ↔ ((deg‘(𝐹 quot (Xp𝑓 − (ℂ × {𝐴})))) = 𝐷 → (((𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) “ {0}) ∈ Fin ∧ (#‘((𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) “ {0})) ≤ (deg‘(𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))))))))
9695rspcv 3295 . . . . . 6 ((𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) ∈ ((Poly‘ℂ) ∖ {0𝑝}) → (∀𝑔 ∈ ((Poly‘ℂ) ∖ {0𝑝})((deg‘𝑔) = 𝐷 → ((𝑔 “ {0}) ∈ Fin ∧ (#‘(𝑔 “ {0})) ≤ (deg‘𝑔))) → ((deg‘(𝐹 quot (Xp𝑓 − (ℂ × {𝐴})))) = 𝐷 → (((𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) “ {0}) ∈ Fin ∧ (#‘((𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) “ {0})) ≤ (deg‘(𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))))))))
9767, 68, 86, 96syl3c 66 . . . . 5 (𝜑 → (((𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) “ {0}) ∈ Fin ∧ (#‘((𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) “ {0})) ≤ (deg‘(𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))))))
9897simpld 475 . . . 4 (𝜑 → ((𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) “ {0}) ∈ Fin)
99 snfi 7998 . . . 4 {𝐴} ∈ Fin
100 unfi 8187 . . . 4 ((((𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) “ {0}) ∈ Fin ∧ {𝐴} ∈ Fin) → (((𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) “ {0}) ∪ {𝐴}) ∈ Fin)
10198, 99, 100sylancl 693 . . 3 (𝜑 → (((𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) “ {0}) ∪ {𝐴}) ∈ Fin)
10252, 101eqeltrd 2698 . 2 (𝜑𝑅 ∈ Fin)
10352fveq2d 6162 . . 3 (𝜑 → (#‘𝑅) = (#‘(((𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) “ {0}) ∪ {𝐴})))
104 hashcl 13103 . . . . . 6 ((((𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) “ {0}) ∪ {𝐴}) ∈ Fin → (#‘(((𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) “ {0}) ∪ {𝐴})) ∈ ℕ0)
105101, 104syl 17 . . . . 5 (𝜑 → (#‘(((𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) “ {0}) ∪ {𝐴})) ∈ ℕ0)
106105nn0red 11312 . . . 4 (𝜑 → (#‘(((𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) “ {0}) ∪ {𝐴})) ∈ ℝ)
107 hashcl 13103 . . . . . . 7 (((𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) “ {0}) ∈ Fin → (#‘((𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) “ {0})) ∈ ℕ0)
10898, 107syl 17 . . . . . 6 (𝜑 → (#‘((𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) “ {0})) ∈ ℕ0)
109108nn0red 11312 . . . . 5 (𝜑 → (#‘((𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) “ {0})) ∈ ℝ)
110 peano2re 10169 . . . . 5 ((#‘((𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) “ {0})) ∈ ℝ → ((#‘((𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) “ {0})) + 1) ∈ ℝ)
111109, 110syl 17 . . . 4 (𝜑 → ((#‘((𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) “ {0})) + 1) ∈ ℝ)
112 dgrcl 23927 . . . . . 6 (𝐹 ∈ (Poly‘ℂ) → (deg‘𝐹) ∈ ℕ0)
1134, 112syl 17 . . . . 5 (𝜑 → (deg‘𝐹) ∈ ℕ0)
114113nn0red 11312 . . . 4 (𝜑 → (deg‘𝐹) ∈ ℝ)
115 hashun2 13128 . . . . . 6 ((((𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) “ {0}) ∈ Fin ∧ {𝐴} ∈ Fin) → (#‘(((𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) “ {0}) ∪ {𝐴})) ≤ ((#‘((𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) “ {0})) + (#‘{𝐴})))
11698, 99, 115sylancl 693 . . . . 5 (𝜑 → (#‘(((𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) “ {0}) ∪ {𝐴})) ≤ ((#‘((𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) “ {0})) + (#‘{𝐴})))
117 hashsng 13115 . . . . . . 7 (𝐴 ∈ ℂ → (#‘{𝐴}) = 1)
11811, 117syl 17 . . . . . 6 (𝜑 → (#‘{𝐴}) = 1)
119118oveq2d 6631 . . . . 5 (𝜑 → ((#‘((𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) “ {0})) + (#‘{𝐴})) = ((#‘((𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) “ {0})) + 1))
120116, 119breqtrd 4649 . . . 4 (𝜑 → (#‘(((𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) “ {0}) ∪ {𝐴})) ≤ ((#‘((𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) “ {0})) + 1))
12173nn0red 11312 . . . . . 6 (𝜑𝐷 ∈ ℝ)
122 1red 10015 . . . . . 6 (𝜑 → 1 ∈ ℝ)
12397simprd 479 . . . . . . 7 (𝜑 → (#‘((𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) “ {0})) ≤ (deg‘(𝐹 quot (Xp𝑓 − (ℂ × {𝐴})))))
124123, 86breqtrd 4649 . . . . . 6 (𝜑 → (#‘((𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) “ {0})) ≤ 𝐷)
125109, 121, 122, 124leadd1dd 10601 . . . . 5 (𝜑 → ((#‘((𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) “ {0})) + 1) ≤ (𝐷 + 1))
126125, 78breqtrrd 4651 . . . 4 (𝜑 → ((#‘((𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) “ {0})) + 1) ≤ (deg‘𝐹))
127106, 111, 114, 120, 126letrd 10154 . . 3 (𝜑 → (#‘(((𝐹 quot (Xp𝑓 − (ℂ × {𝐴}))) “ {0}) ∪ {𝐴})) ≤ (deg‘𝐹))
128103, 127eqbrtrd 4645 . 2 (𝜑 → (#‘𝑅) ≤ (deg‘𝐹))
129102, 128jca 554 1 (𝜑 → (𝑅 ∈ Fin ∧ (#‘𝑅) ≤ (deg‘𝐹)))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 196  wa 384  w3a 1036   = wceq 1480  wcel 1987  wne 2790  wral 2908  Vcvv 3190  cdif 3557  cun 3558  wss 3560  {csn 4155   class class class wbr 4623   × cxp 5082  ccnv 5083  cima 5087   Fn wfn 5852  wf 5853  cfv 5857  (class class class)co 6615  𝑓 cof 6860  Fincfn 7915  cc 9894  cr 9895  0cc0 9896  1c1 9897   + caddc 9899   · cmul 9901  cle 10035  cmin 10226  0cn0 11252  #chash 13073  0𝑝c0p 23376  Polycply 23878  Xpcidp 23879  degcdgr 23881   quot cquot 23983
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1719  ax-4 1734  ax-5 1836  ax-6 1885  ax-7 1932  ax-8 1989  ax-9 1996  ax-10 2016  ax-11 2031  ax-12 2044  ax-13 2245  ax-ext 2601  ax-rep 4741  ax-sep 4751  ax-nul 4759  ax-pow 4813  ax-pr 4877  ax-un 6914  ax-inf2 8498  ax-cnex 9952  ax-resscn 9953  ax-1cn 9954  ax-icn 9955  ax-addcl 9956  ax-addrcl 9957  ax-mulcl 9958  ax-mulrcl 9959  ax-mulcom 9960  ax-addass 9961  ax-mulass 9962  ax-distr 9963  ax-i2m1 9964  ax-1ne0 9965  ax-1rid 9966  ax-rnegex 9967  ax-rrecex 9968  ax-cnre 9969  ax-pre-lttri 9970  ax-pre-lttrn 9971  ax-pre-ltadd 9972  ax-pre-mulgt0 9973  ax-pre-sup 9974  ax-addf 9975
This theorem depends on definitions:  df-bi 197  df-or 385  df-an 386  df-3or 1037  df-3an 1038  df-tru 1483  df-fal 1486  df-ex 1702  df-nf 1707  df-sb 1878  df-eu 2473  df-mo 2474  df-clab 2608  df-cleq 2614  df-clel 2617  df-nfc 2750  df-ne 2791  df-nel 2894  df-ral 2913  df-rex 2914  df-reu 2915  df-rmo 2916  df-rab 2917  df-v 3192  df-sbc 3423  df-csb 3520  df-dif 3563  df-un 3565  df-in 3567  df-ss 3574  df-pss 3576  df-nul 3898  df-if 4065  df-pw 4138  df-sn 4156  df-pr 4158  df-tp 4160  df-op 4162  df-uni 4410  df-int 4448  df-iun 4494  df-br 4624  df-opab 4684  df-mpt 4685  df-tr 4723  df-eprel 4995  df-id 4999  df-po 5005  df-so 5006  df-fr 5043  df-se 5044  df-we 5045  df-xp 5090  df-rel 5091  df-cnv 5092  df-co 5093  df-dm 5094  df-rn 5095  df-res 5096  df-ima 5097  df-pred 5649  df-ord 5695  df-on 5696  df-lim 5697  df-suc 5698  df-iota 5820  df-fun 5859  df-fn 5860  df-f 5861  df-f1 5862  df-fo 5863  df-f1o 5864  df-fv 5865  df-isom 5866  df-riota 6576  df-ov 6618  df-oprab 6619  df-mpt2 6620  df-of 6862  df-om 7028  df-1st 7128  df-2nd 7129  df-wrecs 7367  df-recs 7428  df-rdg 7466  df-1o 7520  df-oadd 7524  df-er 7702  df-map 7819  df-pm 7820  df-en 7916  df-dom 7917  df-sdom 7918  df-fin 7919  df-sup 8308  df-inf 8309  df-oi 8375  df-card 8725  df-cda 8950  df-pnf 10036  df-mnf 10037  df-xr 10038  df-ltxr 10039  df-le 10040  df-sub 10228  df-neg 10229  df-div 10645  df-nn 10981  df-2 11039  df-3 11040  df-n0 11253  df-xnn0 11324  df-z 11338  df-uz 11648  df-rp 11793  df-fz 12285  df-fzo 12423  df-fl 12549  df-seq 12758  df-exp 12817  df-hash 13074  df-cj 13789  df-re 13790  df-im 13791  df-sqrt 13925  df-abs 13926  df-clim 14169  df-rlim 14170  df-sum 14367  df-0p 23377  df-ply 23882  df-idp 23883  df-coe 23884  df-dgr 23885  df-quot 23984
This theorem is referenced by:  fta1  24001
  Copyright terms: Public domain W3C validator