pcgcd1 - Metamath Proof Explorer

	Metamath Proof Explorer		< Previous Next > Nearby theorems
Mirrors > Home > MPE Home > Th. List > pcgcd1		Structured version Visualization version GIF version

Theorem pcgcd1 16879

Description: The prime count of a GCD is the minimum of the prime counts of the arguments. (Contributed by Mario Carneiro, 3-Oct-2014.)

**Assertion**
Ref	Expression
pcgcd1	⊢ (((𝑃 ∈ ℙ ∧ 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) ∧ (𝑃 pCnt 𝐴) ≤ (𝑃 pCnt 𝐵)) → (𝑃 pCnt (𝐴 gcd 𝐵)) = (𝑃 pCnt 𝐴))

**Proof of Theorem pcgcd1**
Step	Hyp	Ref	Expression
1		oveq2 7432	. . . 4 ⊢ (𝐵 = 0 → (𝐴 gcd 𝐵) = (𝐴 gcd 0))
2	1	oveq2d 7440	. . 3 ⊢ (𝐵 = 0 → (𝑃 pCnt (𝐴 gcd 𝐵)) = (𝑃 pCnt (𝐴 gcd 0)))
3	2	eqeq1d 2728	. 2 ⊢ (𝐵 = 0 → ((𝑃 pCnt (𝐴 gcd 𝐵)) = (𝑃 pCnt 𝐴) ↔ (𝑃 pCnt (𝐴 gcd 0)) = (𝑃 pCnt 𝐴)))
4		simpl1 1188	. . . . 5 ⊢ (((𝑃 ∈ ℙ ∧ 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) ∧ ((𝑃 pCnt 𝐴) ≤ (𝑃 pCnt 𝐵) ∧ 𝐵 ≠ 0)) → 𝑃 ∈ ℙ)
5		simp2 1134	. . . . . . . 8 ⊢ ((𝑃 ∈ ℙ ∧ 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) → 𝐴 ∈ ℤ)
6	5	adantr 479	. . . . . . 7 ⊢ (((𝑃 ∈ ℙ ∧ 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) ∧ ((𝑃 pCnt 𝐴) ≤ (𝑃 pCnt 𝐵) ∧ 𝐵 ≠ 0)) → 𝐴 ∈ ℤ)
7		simpl3 1190	. . . . . . 7 ⊢ (((𝑃 ∈ ℙ ∧ 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) ∧ ((𝑃 pCnt 𝐴) ≤ (𝑃 pCnt 𝐵) ∧ 𝐵 ≠ 0)) → 𝐵 ∈ ℤ)
8		simprr 771	. . . . . . . 8 ⊢ (((𝑃 ∈ ℙ ∧ 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) ∧ ((𝑃 pCnt 𝐴) ≤ (𝑃 pCnt 𝐵) ∧ 𝐵 ≠ 0)) → 𝐵 ≠ 0)
9		simpr 483	. . . . . . . . 9 ⊢ ((𝐴 = 0 ∧ 𝐵 = 0) → 𝐵 = 0)
10	9	necon3ai 2955	. . . . . . . 8 ⊢ (𝐵 ≠ 0 → ¬ (𝐴 = 0 ∧ 𝐵 = 0))
11	8, 10	syl 17	. . . . . . 7 ⊢ (((𝑃 ∈ ℙ ∧ 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) ∧ ((𝑃 pCnt 𝐴) ≤ (𝑃 pCnt 𝐵) ∧ 𝐵 ≠ 0)) → ¬ (𝐴 = 0 ∧ 𝐵 = 0))
12		gcdn0cl 16502	. . . . . . 7 ⊢ (((𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) ∧ ¬ (𝐴 = 0 ∧ 𝐵 = 0)) → (𝐴 gcd 𝐵) ∈ ℕ)
13	6, 7, 11, 12	syl21anc 836	. . . . . 6 ⊢ (((𝑃 ∈ ℙ ∧ 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) ∧ ((𝑃 pCnt 𝐴) ≤ (𝑃 pCnt 𝐵) ∧ 𝐵 ≠ 0)) → (𝐴 gcd 𝐵) ∈ ℕ)
14	13	nnzd 12637	. . . . 5 ⊢ (((𝑃 ∈ ℙ ∧ 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) ∧ ((𝑃 pCnt 𝐴) ≤ (𝑃 pCnt 𝐵) ∧ 𝐵 ≠ 0)) → (𝐴 gcd 𝐵) ∈ ℤ)
15		gcddvds 16503	. . . . . . 7 ⊢ ((𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) → ((𝐴 gcd 𝐵) ∥ 𝐴 ∧ (𝐴 gcd 𝐵) ∥ 𝐵))
16	6, 7, 15	syl2anc 582	. . . . . 6 ⊢ (((𝑃 ∈ ℙ ∧ 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) ∧ ((𝑃 pCnt 𝐴) ≤ (𝑃 pCnt 𝐵) ∧ 𝐵 ≠ 0)) → ((𝐴 gcd 𝐵) ∥ 𝐴 ∧ (𝐴 gcd 𝐵) ∥ 𝐵))
17	16	simpld 493	. . . . 5 ⊢ (((𝑃 ∈ ℙ ∧ 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) ∧ ((𝑃 pCnt 𝐴) ≤ (𝑃 pCnt 𝐵) ∧ 𝐵 ≠ 0)) → (𝐴 gcd 𝐵) ∥ 𝐴)
18		pcdvdstr 16878	. . . . 5 ⊢ ((𝑃 ∈ ℙ ∧ ((𝐴 gcd 𝐵) ∈ ℤ ∧ 𝐴 ∈ ℤ ∧ (𝐴 gcd 𝐵) ∥ 𝐴)) → (𝑃 pCnt (𝐴 gcd 𝐵)) ≤ (𝑃 pCnt 𝐴))
19	4, 14, 6, 17, 18	syl13anc 1369	. . . 4 ⊢ (((𝑃 ∈ ℙ ∧ 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) ∧ ((𝑃 pCnt 𝐴) ≤ (𝑃 pCnt 𝐵) ∧ 𝐵 ≠ 0)) → (𝑃 pCnt (𝐴 gcd 𝐵)) ≤ (𝑃 pCnt 𝐴))
20		zq 12990	. . . . . . . . . . 11 ⊢ (𝐴 ∈ ℤ → 𝐴 ∈ ℚ)
21	6, 20	syl 17	. . . . . . . . . 10 ⊢ (((𝑃 ∈ ℙ ∧ 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) ∧ ((𝑃 pCnt 𝐴) ≤ (𝑃 pCnt 𝐵) ∧ 𝐵 ≠ 0)) → 𝐴 ∈ ℚ)
22		pcxcl 16863	. . . . . . . . . 10 ⊢ ((𝑃 ∈ ℙ ∧ 𝐴 ∈ ℚ) → (𝑃 pCnt 𝐴) ∈ ℝ^*)
23	4, 21, 22	syl2anc 582	. . . . . . . . 9 ⊢ (((𝑃 ∈ ℙ ∧ 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) ∧ ((𝑃 pCnt 𝐴) ≤ (𝑃 pCnt 𝐵) ∧ 𝐵 ≠ 0)) → (𝑃 pCnt 𝐴) ∈ ℝ^*)
24		pczcl 16850	. . . . . . . . . . 11 ⊢ ((𝑃 ∈ ℙ ∧ (𝐵 ∈ ℤ ∧ 𝐵 ≠ 0)) → (𝑃 pCnt 𝐵) ∈ ℕ₀)
25	4, 7, 8, 24	syl12anc 835	. . . . . . . . . 10 ⊢ (((𝑃 ∈ ℙ ∧ 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) ∧ ((𝑃 pCnt 𝐴) ≤ (𝑃 pCnt 𝐵) ∧ 𝐵 ≠ 0)) → (𝑃 pCnt 𝐵) ∈ ℕ₀)
26	25	nn0red 12585	. . . . . . . . 9 ⊢ (((𝑃 ∈ ℙ ∧ 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) ∧ ((𝑃 pCnt 𝐴) ≤ (𝑃 pCnt 𝐵) ∧ 𝐵 ≠ 0)) → (𝑃 pCnt 𝐵) ∈ ℝ)
27		pcge0 16864	. . . . . . . . . . 11 ⊢ ((𝑃 ∈ ℙ ∧ 𝐴 ∈ ℤ) → 0 ≤ (𝑃 pCnt 𝐴))
28	4, 6, 27	syl2anc 582	. . . . . . . . . 10 ⊢ (((𝑃 ∈ ℙ ∧ 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) ∧ ((𝑃 pCnt 𝐴) ≤ (𝑃 pCnt 𝐵) ∧ 𝐵 ≠ 0)) → 0 ≤ (𝑃 pCnt 𝐴))
29		ge0gtmnf 13205	. . . . . . . . . 10 ⊢ (((𝑃 pCnt 𝐴) ∈ ℝ^* ∧ 0 ≤ (𝑃 pCnt 𝐴)) → -∞ < (𝑃 pCnt 𝐴))
30	23, 28, 29	syl2anc 582	. . . . . . . . 9 ⊢ (((𝑃 ∈ ℙ ∧ 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) ∧ ((𝑃 pCnt 𝐴) ≤ (𝑃 pCnt 𝐵) ∧ 𝐵 ≠ 0)) → -∞ < (𝑃 pCnt 𝐴))
31		simprl 769	. . . . . . . . 9 ⊢ (((𝑃 ∈ ℙ ∧ 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) ∧ ((𝑃 pCnt 𝐴) ≤ (𝑃 pCnt 𝐵) ∧ 𝐵 ≠ 0)) → (𝑃 pCnt 𝐴) ≤ (𝑃 pCnt 𝐵))
32		xrre 13202	. . . . . . . . 9 ⊢ ((((𝑃 pCnt 𝐴) ∈ ℝ^* ∧ (𝑃 pCnt 𝐵) ∈ ℝ) ∧ (-∞ < (𝑃 pCnt 𝐴) ∧ (𝑃 pCnt 𝐴) ≤ (𝑃 pCnt 𝐵))) → (𝑃 pCnt 𝐴) ∈ ℝ)
33	23, 26, 30, 31, 32	syl22anc 837	. . . . . . . 8 ⊢ (((𝑃 ∈ ℙ ∧ 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) ∧ ((𝑃 pCnt 𝐴) ≤ (𝑃 pCnt 𝐵) ∧ 𝐵 ≠ 0)) → (𝑃 pCnt 𝐴) ∈ ℝ)
34		pnfnre 11305	. . . . . . . . . . . 12 ⊢ +∞ ∉ ℝ
35	34	neli 3038	. . . . . . . . . . 11 ⊢ ¬ +∞ ∈ ℝ
36		pc0 16856	. . . . . . . . . . . . 13 ⊢ (𝑃 ∈ ℙ → (𝑃 pCnt 0) = +∞)
37	4, 36	syl 17	. . . . . . . . . . . 12 ⊢ (((𝑃 ∈ ℙ ∧ 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) ∧ ((𝑃 pCnt 𝐴) ≤ (𝑃 pCnt 𝐵) ∧ 𝐵 ≠ 0)) → (𝑃 pCnt 0) = +∞)
38	37	eleq1d 2811	. . . . . . . . . . 11 ⊢ (((𝑃 ∈ ℙ ∧ 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) ∧ ((𝑃 pCnt 𝐴) ≤ (𝑃 pCnt 𝐵) ∧ 𝐵 ≠ 0)) → ((𝑃 pCnt 0) ∈ ℝ ↔ +∞ ∈ ℝ))
39	35, 38	mtbiri 326	. . . . . . . . . 10 ⊢ (((𝑃 ∈ ℙ ∧ 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) ∧ ((𝑃 pCnt 𝐴) ≤ (𝑃 pCnt 𝐵) ∧ 𝐵 ≠ 0)) → ¬ (𝑃 pCnt 0) ∈ ℝ)
40		oveq2 7432	. . . . . . . . . . . 12 ⊢ (𝐴 = 0 → (𝑃 pCnt 𝐴) = (𝑃 pCnt 0))
41	40	eleq1d 2811	. . . . . . . . . . 11 ⊢ (𝐴 = 0 → ((𝑃 pCnt 𝐴) ∈ ℝ ↔ (𝑃 pCnt 0) ∈ ℝ))
42	41	notbid 317	. . . . . . . . . 10 ⊢ (𝐴 = 0 → (¬ (𝑃 pCnt 𝐴) ∈ ℝ ↔ ¬ (𝑃 pCnt 0) ∈ ℝ))
43	39, 42	syl5ibrcom 246	. . . . . . . . 9 ⊢ (((𝑃 ∈ ℙ ∧ 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) ∧ ((𝑃 pCnt 𝐴) ≤ (𝑃 pCnt 𝐵) ∧ 𝐵 ≠ 0)) → (𝐴 = 0 → ¬ (𝑃 pCnt 𝐴) ∈ ℝ))
44	43	necon2ad 2945	. . . . . . . 8 ⊢ (((𝑃 ∈ ℙ ∧ 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) ∧ ((𝑃 pCnt 𝐴) ≤ (𝑃 pCnt 𝐵) ∧ 𝐵 ≠ 0)) → ((𝑃 pCnt 𝐴) ∈ ℝ → 𝐴 ≠ 0))
45	33, 44	mpd 15	. . . . . . 7 ⊢ (((𝑃 ∈ ℙ ∧ 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) ∧ ((𝑃 pCnt 𝐴) ≤ (𝑃 pCnt 𝐵) ∧ 𝐵 ≠ 0)) → 𝐴 ≠ 0)
46		pczdvds 16865	. . . . . . 7 ⊢ ((𝑃 ∈ ℙ ∧ (𝐴 ∈ ℤ ∧ 𝐴 ≠ 0)) → (𝑃↑(𝑃 pCnt 𝐴)) ∥ 𝐴)
47	4, 6, 45, 46	syl12anc 835	. . . . . 6 ⊢ (((𝑃 ∈ ℙ ∧ 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) ∧ ((𝑃 pCnt 𝐴) ≤ (𝑃 pCnt 𝐵) ∧ 𝐵 ≠ 0)) → (𝑃↑(𝑃 pCnt 𝐴)) ∥ 𝐴)
48		pczcl 16850	. . . . . . . . 9 ⊢ ((𝑃 ∈ ℙ ∧ (𝐴 ∈ ℤ ∧ 𝐴 ≠ 0)) → (𝑃 pCnt 𝐴) ∈ ℕ₀)
49	4, 6, 45, 48	syl12anc 835	. . . . . . . 8 ⊢ (((𝑃 ∈ ℙ ∧ 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) ∧ ((𝑃 pCnt 𝐴) ≤ (𝑃 pCnt 𝐵) ∧ 𝐵 ≠ 0)) → (𝑃 pCnt 𝐴) ∈ ℕ₀)
50		pcdvdsb 16871	. . . . . . . 8 ⊢ ((𝑃 ∈ ℙ ∧ 𝐵 ∈ ℤ ∧ (𝑃 pCnt 𝐴) ∈ ℕ₀) → ((𝑃 pCnt 𝐴) ≤ (𝑃 pCnt 𝐵) ↔ (𝑃↑(𝑃 pCnt 𝐴)) ∥ 𝐵))
51	4, 7, 49, 50	syl3anc 1368	. . . . . . 7 ⊢ (((𝑃 ∈ ℙ ∧ 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) ∧ ((𝑃 pCnt 𝐴) ≤ (𝑃 pCnt 𝐵) ∧ 𝐵 ≠ 0)) → ((𝑃 pCnt 𝐴) ≤ (𝑃 pCnt 𝐵) ↔ (𝑃↑(𝑃 pCnt 𝐴)) ∥ 𝐵))
52	31, 51	mpbid 231	. . . . . 6 ⊢ (((𝑃 ∈ ℙ ∧ 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) ∧ ((𝑃 pCnt 𝐴) ≤ (𝑃 pCnt 𝐵) ∧ 𝐵 ≠ 0)) → (𝑃↑(𝑃 pCnt 𝐴)) ∥ 𝐵)
53		prmnn 16675	. . . . . . . . . 10 ⊢ (𝑃 ∈ ℙ → 𝑃 ∈ ℕ)
54	4, 53	syl 17	. . . . . . . . 9 ⊢ (((𝑃 ∈ ℙ ∧ 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) ∧ ((𝑃 pCnt 𝐴) ≤ (𝑃 pCnt 𝐵) ∧ 𝐵 ≠ 0)) → 𝑃 ∈ ℕ)
55	54, 49	nnexpcld 14262	. . . . . . . 8 ⊢ (((𝑃 ∈ ℙ ∧ 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) ∧ ((𝑃 pCnt 𝐴) ≤ (𝑃 pCnt 𝐵) ∧ 𝐵 ≠ 0)) → (𝑃↑(𝑃 pCnt 𝐴)) ∈ ℕ)
56	55	nnzd 12637	. . . . . . 7 ⊢ (((𝑃 ∈ ℙ ∧ 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) ∧ ((𝑃 pCnt 𝐴) ≤ (𝑃 pCnt 𝐵) ∧ 𝐵 ≠ 0)) → (𝑃↑(𝑃 pCnt 𝐴)) ∈ ℤ)
57		dvdsgcd 16545	. . . . . . 7 ⊢ (((𝑃↑(𝑃 pCnt 𝐴)) ∈ ℤ ∧ 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) → (((𝑃↑(𝑃 pCnt 𝐴)) ∥ 𝐴 ∧ (𝑃↑(𝑃 pCnt 𝐴)) ∥ 𝐵) → (𝑃↑(𝑃 pCnt 𝐴)) ∥ (𝐴 gcd 𝐵)))
58	56, 6, 7, 57	syl3anc 1368	. . . . . 6 ⊢ (((𝑃 ∈ ℙ ∧ 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) ∧ ((𝑃 pCnt 𝐴) ≤ (𝑃 pCnt 𝐵) ∧ 𝐵 ≠ 0)) → (((𝑃↑(𝑃 pCnt 𝐴)) ∥ 𝐴 ∧ (𝑃↑(𝑃 pCnt 𝐴)) ∥ 𝐵) → (𝑃↑(𝑃 pCnt 𝐴)) ∥ (𝐴 gcd 𝐵)))
59	47, 52, 58	mp2and 697	. . . . 5 ⊢ (((𝑃 ∈ ℙ ∧ 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) ∧ ((𝑃 pCnt 𝐴) ≤ (𝑃 pCnt 𝐵) ∧ 𝐵 ≠ 0)) → (𝑃↑(𝑃 pCnt 𝐴)) ∥ (𝐴 gcd 𝐵))
60		pcdvdsb 16871	. . . . . 6 ⊢ ((𝑃 ∈ ℙ ∧ (𝐴 gcd 𝐵) ∈ ℤ ∧ (𝑃 pCnt 𝐴) ∈ ℕ₀) → ((𝑃 pCnt 𝐴) ≤ (𝑃 pCnt (𝐴 gcd 𝐵)) ↔ (𝑃↑(𝑃 pCnt 𝐴)) ∥ (𝐴 gcd 𝐵)))
61	4, 14, 49, 60	syl3anc 1368	. . . . 5 ⊢ (((𝑃 ∈ ℙ ∧ 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) ∧ ((𝑃 pCnt 𝐴) ≤ (𝑃 pCnt 𝐵) ∧ 𝐵 ≠ 0)) → ((𝑃 pCnt 𝐴) ≤ (𝑃 pCnt (𝐴 gcd 𝐵)) ↔ (𝑃↑(𝑃 pCnt 𝐴)) ∥ (𝐴 gcd 𝐵)))
62	59, 61	mpbird 256	. . . 4 ⊢ (((𝑃 ∈ ℙ ∧ 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) ∧ ((𝑃 pCnt 𝐴) ≤ (𝑃 pCnt 𝐵) ∧ 𝐵 ≠ 0)) → (𝑃 pCnt 𝐴) ≤ (𝑃 pCnt (𝐴 gcd 𝐵)))
63	4, 13	pccld 16852	. . . . . 6 ⊢ (((𝑃 ∈ ℙ ∧ 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) ∧ ((𝑃 pCnt 𝐴) ≤ (𝑃 pCnt 𝐵) ∧ 𝐵 ≠ 0)) → (𝑃 pCnt (𝐴 gcd 𝐵)) ∈ ℕ₀)
64	63	nn0red 12585	. . . . 5 ⊢ (((𝑃 ∈ ℙ ∧ 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) ∧ ((𝑃 pCnt 𝐴) ≤ (𝑃 pCnt 𝐵) ∧ 𝐵 ≠ 0)) → (𝑃 pCnt (𝐴 gcd 𝐵)) ∈ ℝ)
65	64, 33	letri3d 11406	. . . 4 ⊢ (((𝑃 ∈ ℙ ∧ 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) ∧ ((𝑃 pCnt 𝐴) ≤ (𝑃 pCnt 𝐵) ∧ 𝐵 ≠ 0)) → ((𝑃 pCnt (𝐴 gcd 𝐵)) = (𝑃 pCnt 𝐴) ↔ ((𝑃 pCnt (𝐴 gcd 𝐵)) ≤ (𝑃 pCnt 𝐴) ∧ (𝑃 pCnt 𝐴) ≤ (𝑃 pCnt (𝐴 gcd 𝐵)))))
66	19, 62, 65	mpbir2and 711	. . 3 ⊢ (((𝑃 ∈ ℙ ∧ 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) ∧ ((𝑃 pCnt 𝐴) ≤ (𝑃 pCnt 𝐵) ∧ 𝐵 ≠ 0)) → (𝑃 pCnt (𝐴 gcd 𝐵)) = (𝑃 pCnt 𝐴))
67	66	anassrs 466	. 2 ⊢ ((((𝑃 ∈ ℙ ∧ 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) ∧ (𝑃 pCnt 𝐴) ≤ (𝑃 pCnt 𝐵)) ∧ 𝐵 ≠ 0) → (𝑃 pCnt (𝐴 gcd 𝐵)) = (𝑃 pCnt 𝐴))
68		gcdid0 16520	. . . . . 6 ⊢ (𝐴 ∈ ℤ → (𝐴 gcd 0) = (abs‘𝐴))
69	5, 68	syl 17	. . . . 5 ⊢ ((𝑃 ∈ ℙ ∧ 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) → (𝐴 gcd 0) = (abs‘𝐴))
70	69	oveq2d 7440	. . . 4 ⊢ ((𝑃 ∈ ℙ ∧ 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) → (𝑃 pCnt (𝐴 gcd 0)) = (𝑃 pCnt (abs‘𝐴)))
71		pcabs 16877	. . . . . 6 ⊢ ((𝑃 ∈ ℙ ∧ 𝐴 ∈ ℚ) → (𝑃 pCnt (abs‘𝐴)) = (𝑃 pCnt 𝐴))
72	20, 71	sylan2 591	. . . . 5 ⊢ ((𝑃 ∈ ℙ ∧ 𝐴 ∈ ℤ) → (𝑃 pCnt (abs‘𝐴)) = (𝑃 pCnt 𝐴))
73	72	3adant3 1129	. . . 4 ⊢ ((𝑃 ∈ ℙ ∧ 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) → (𝑃 pCnt (abs‘𝐴)) = (𝑃 pCnt 𝐴))
74	70, 73	eqtrd 2766	. . 3 ⊢ ((𝑃 ∈ ℙ ∧ 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) → (𝑃 pCnt (𝐴 gcd 0)) = (𝑃 pCnt 𝐴))
75	74	adantr 479	. 2 ⊢ (((𝑃 ∈ ℙ ∧ 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) ∧ (𝑃 pCnt 𝐴) ≤ (𝑃 pCnt 𝐵)) → (𝑃 pCnt (𝐴 gcd 0)) = (𝑃 pCnt 𝐴))
76	3, 67, 75	pm2.61ne 3017	1 ⊢ (((𝑃 ∈ ℙ ∧ 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) ∧ (𝑃 pCnt 𝐴) ≤ (𝑃 pCnt 𝐵)) → (𝑃 pCnt (𝐴 gcd 𝐵)) = (𝑃 pCnt 𝐴))

Colors of variables: wff setvar class

Syntax hints: ¬ wn 3 → wi 4 ↔ wb 205 ∧ wa 394 ∧ w3a 1084 = wceq 1534 ∈ wcel 2099 ≠ wne 2930 class class class wbr 5153 ‘cfv 6554 (class class class)co 7424 ℝcr 11157 0cc0 11158 +∞cpnf 11295 -∞cmnf 11296 ℝ^*cxr 11297 < clt 11298 ≤ cle 11299 ℕcn 12264 ℕ₀cn0 12524 ℤcz 12610 ℚcq 12984 ↑cexp 14081 abscabs 15239 ∥ cdvds 16256 gcd cgcd 16494 ℙcprime 16672 pCnt cpc 16838

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1790 ax-4 1804 ax-5 1906 ax-6 1964 ax-7 2004 ax-8 2101 ax-9 2109 ax-10 2130 ax-11 2147 ax-12 2167 ax-ext 2697 ax-sep 5304 ax-nul 5311 ax-pow 5369 ax-pr 5433 ax-un 7746 ax-cnex 11214 ax-resscn 11215 ax-1cn 11216 ax-icn 11217 ax-addcl 11218 ax-addrcl 11219 ax-mulcl 11220 ax-mulrcl 11221 ax-mulcom 11222 ax-addass 11223 ax-mulass 11224 ax-distr 11225 ax-i2m1 11226 ax-1ne0 11227 ax-1rid 11228 ax-rnegex 11229 ax-rrecex 11230 ax-cnre 11231 ax-pre-lttri 11232 ax-pre-lttrn 11233 ax-pre-ltadd 11234 ax-pre-mulgt0 11235 ax-pre-sup 11236

This theorem depends on definitions: df-bi 206 df-an 395 df-or 846 df-3or 1085 df-3an 1086 df-tru 1537 df-fal 1547 df-ex 1775 df-nf 1779 df-sb 2061 df-mo 2529 df-eu 2558 df-clab 2704 df-cleq 2718 df-clel 2803 df-nfc 2878 df-ne 2931 df-nel 3037 df-ral 3052 df-rex 3061 df-rmo 3364 df-reu 3365 df-rab 3420 df-v 3464 df-sbc 3777 df-csb 3893 df-dif 3950 df-un 3952 df-in 3954 df-ss 3964 df-pss 3967 df-nul 4326 df-if 4534 df-pw 4609 df-sn 4634 df-pr 4636 df-op 4640 df-uni 4914 df-iun 5003 df-br 5154 df-opab 5216 df-mpt 5237 df-tr 5271 df-id 5580 df-eprel 5586 df-po 5594 df-so 5595 df-fr 5637 df-we 5639 df-xp 5688 df-rel 5689 df-cnv 5690 df-co 5691 df-dm 5692 df-rn 5693 df-res 5694 df-ima 5695 df-pred 6312 df-ord 6379 df-on 6380 df-lim 6381 df-suc 6382 df-iota 6506 df-fun 6556 df-fn 6557 df-f 6558 df-f1 6559 df-fo 6560 df-f1o 6561 df-fv 6562 df-riota 7380 df-ov 7427 df-oprab 7428 df-mpo 7429 df-om 7877 df-1st 8003 df-2nd 8004 df-frecs 8296 df-wrecs 8327 df-recs 8401 df-rdg 8440 df-1o 8496 df-2o 8497 df-er 8734 df-en 8975 df-dom 8976 df-sdom 8977 df-fin 8978 df-sup 9485 df-inf 9486 df-pnf 11300 df-mnf 11301 df-xr 11302 df-ltxr 11303 df-le 11304 df-sub 11496 df-neg 11497 df-div 11922 df-nn 12265 df-2 12327 df-3 12328 df-n0 12525 df-z 12611 df-uz 12875 df-q 12985 df-rp 13029 df-fl 13812 df-mod 13890 df-seq 14022 df-exp 14082 df-cj 15104 df-re 15105 df-im 15106 df-sqrt 15240 df-abs 15241 df-dvds 16257 df-gcd 16495 df-prm 16673 df-pc 16839

This theorem is referenced by: pcgcd 16880

W3C validator