Theorem isuc1p 24728

Description: Being a unitic polynomial. (Contributed by Stefan O'Rear, 28-Mar-2015.)

Hypotheses

Ref	Expression
uc1pval.p	⊢ 𝑃 = (Poly1‘𝑅)
uc1pval.b	⊢ 𝐵 = (Base‘𝑃)
uc1pval.z	⊢ 0 = (0g‘𝑃)
uc1pval.d	⊢ 𝐷 = ( deg1 ‘𝑅)
uc1pval.c	⊢ 𝐶 = (Unic1p‘𝑅)
uc1pval.u	⊢ 𝑈 = (Unit‘𝑅)

Assertion

Ref	Expression
isuc1p	⊢ (𝐹 ∈ 𝐶 ↔ (𝐹 ∈ 𝐵 ∧ 𝐹 ≠ 0 ∧ ((coe1‘𝐹)‘(𝐷‘𝐹)) ∈ 𝑈))

Proof of Theorem isuc1p

Dummy variable 𝑓 is distinct from all other variables.

Step	Hyp	Ref	Expression
1		neeq1 3078	. . . 4 ⊢ (𝑓 = 𝐹 → (𝑓 ≠ 0 ↔ 𝐹 ≠ 0 ))
2		fveq2 6664	. . . . . 6 ⊢ (𝑓 = 𝐹 → (coe1‘𝑓) = (coe1‘𝐹))
3		fveq2 6664	. . . . . 6 ⊢ (𝑓 = 𝐹 → (𝐷‘𝑓) = (𝐷‘𝐹))
4	2, 3	fveq12d 6671	. . . . 5 ⊢ (𝑓 = 𝐹 → ((coe1‘𝑓)‘(𝐷‘𝑓)) = ((coe1‘𝐹)‘(𝐷‘𝐹)))
5	4	eleq1d 2897	. . . 4 ⊢ (𝑓 = 𝐹 → (((coe1‘𝑓)‘(𝐷‘𝑓)) ∈ 𝑈 ↔ ((coe1‘𝐹)‘(𝐷‘𝐹)) ∈ 𝑈))
6	1, 5	anbi12d 632	. . 3 ⊢ (𝑓 = 𝐹 → ((𝑓 ≠ 0 ∧ ((coe1‘𝑓)‘(𝐷‘𝑓)) ∈ 𝑈) ↔ (𝐹 ≠ 0 ∧ ((coe1‘𝐹)‘(𝐷‘𝐹)) ∈ 𝑈)))
7		uc1pval.p	. . . 4 ⊢ 𝑃 = (Poly1‘𝑅)
8		uc1pval.b	. . . 4 ⊢ 𝐵 = (Base‘𝑃)
9		uc1pval.z	. . . 4 ⊢ 0 = (0g‘𝑃)
10		uc1pval.d	. . . 4 ⊢ 𝐷 = ( deg1 ‘𝑅)
11		uc1pval.c	. . . 4 ⊢ 𝐶 = (Unic1p‘𝑅)
12		uc1pval.u	. . . 4 ⊢ 𝑈 = (Unit‘𝑅)
13	7, 8, 9, 10, 11, 12	uc1pval 24727	. . 3 ⊢ 𝐶 = {𝑓 ∈ 𝐵 ∣ (𝑓 ≠ 0 ∧ ((coe1‘𝑓)‘(𝐷‘𝑓)) ∈ 𝑈)}
14	6, 13	elrab2 3682	. 2 ⊢ (𝐹 ∈ 𝐶 ↔ (𝐹 ∈ 𝐵 ∧ (𝐹 ≠ 0 ∧ ((coe1‘𝐹)‘(𝐷‘𝐹)) ∈ 𝑈)))
15		3anass 1091	. 2 ⊢ ((𝐹 ∈ 𝐵 ∧ 𝐹 ≠ 0 ∧ ((coe1‘𝐹)‘(𝐷‘𝐹)) ∈ 𝑈) ↔ (𝐹 ∈ 𝐵 ∧ (𝐹 ≠ 0 ∧ ((coe1‘𝐹)‘(𝐷‘𝐹)) ∈ 𝑈)))
16	14, 15	bitr4i 280	1 ⊢ (𝐹 ∈ 𝐶 ↔ (𝐹 ∈ 𝐵 ∧ 𝐹 ≠ 0 ∧ ((coe1‘𝐹)‘(𝐷‘𝐹)) ∈ 𝑈))

Syntax hints:   ↔ wb 208   ∧ wa 398   ∧ w3a 1083   = wceq 1533   ∈ wcel 2110   ≠ wne 3016  ‘cfv 6349  Basecbs 16477  0_gc0g 16707  Unitcui 19383  Poly₁cpl1 20339  coe₁cco1 20340   deg₁ cdg1 24642  Unic_1pcuc1p 24714

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1792  ax-4 1806  ax-5 1907  ax-6 1966  ax-7 2011  ax-8 2112  ax-9 2120  ax-10 2141  ax-11 2157  ax-12 2173  ax-ext 2793  ax-sep 5195  ax-nul 5202  ax-pow 5258  ax-pr 5321

This theorem depends on definitions:  df-bi 209  df-an 399  df-or 844  df-3an 1085  df-tru 1536  df-ex 1777  df-nf 1781  df-sb 2066  df-mo 2618  df-eu 2650  df-clab 2800  df-cleq 2814  df-clel 2893  df-nfc 2963  df-ne 3017  df-ral 3143  df-rex 3144  df-rab 3147  df-v 3496  df-sbc 3772  df-dif 3938  df-un 3940  df-in 3942  df-ss 3951  df-nul 4291  df-if 4467  df-sn 4561  df-pr 4563  df-op 4567  df-uni 4832  df-br 5059  df-opab 5121  df-mpt 5139  df-id 5454  df-xp 5555  df-rel 5556  df-cnv 5557  df-co 5558  df-dm 5559  df-iota 6308  df-fun 6351  df-fv 6357  df-slot 16481  df-base 16483  df-uc1p 24719

This theorem is referenced by:  uc1pcl  24731  uc1pn0  24733  uc1pldg  24736  mon1puc1p  24738  drnguc1p  24758