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Theorem mumullem2 25760

Description: Lemma for mumul 25761. The product of two coprime squarefree numbers is squarefree. (Contributed by Mario Carneiro, 3-Oct-2014.)

**Assertion**
Ref	Expression
mumullem2	⊢ (((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ ((μ‘𝐴) ≠ 0 ∧ (μ‘𝐵) ≠ 0)) → (μ‘(𝐴 · 𝐵)) ≠ 0)

Proof of Theorem mumullem2 Dummy variable 𝑝 is distinct from all other variables.

Step	Hyp	Ref	Expression
1		r19.26 3173	. . . 4 ⊢ (∀𝑝 ∈ ℙ ((𝑝 pCnt 𝐴) ≤ 1 ∧ (𝑝 pCnt 𝐵) ≤ 1) ↔ (∀𝑝 ∈ ℙ (𝑝 pCnt 𝐴) ≤ 1 ∧ ∀𝑝 ∈ ℙ (𝑝 pCnt 𝐵) ≤ 1))
2		simpr 487	. . . . . . . . . 10 ⊢ (((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) → 𝑝 ∈ ℙ)
3		simpl1 1187	. . . . . . . . . 10 ⊢ (((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) → 𝐴 ∈ ℕ)
4	2, 3	pccld 16190	. . . . . . . . 9 ⊢ (((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) → (𝑝 pCnt 𝐴) ∈ ℕ₀)
5	4	nn0red 11959	. . . . . . . 8 ⊢ (((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) → (𝑝 pCnt 𝐴) ∈ ℝ)
6		simpl2 1188	. . . . . . . . . 10 ⊢ (((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) → 𝐵 ∈ ℕ)
7	2, 6	pccld 16190	. . . . . . . . 9 ⊢ (((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) → (𝑝 pCnt 𝐵) ∈ ℕ₀)
8	7	nn0red 11959	. . . . . . . 8 ⊢ (((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) → (𝑝 pCnt 𝐵) ∈ ℝ)
9		1red 10645	. . . . . . . 8 ⊢ (((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) → 1 ∈ ℝ)
10		le2add 11125	. . . . . . . 8 ⊢ ((((𝑝 pCnt 𝐴) ∈ ℝ ∧ (𝑝 pCnt 𝐵) ∈ ℝ) ∧ (1 ∈ ℝ ∧ 1 ∈ ℝ)) → (((𝑝 pCnt 𝐴) ≤ 1 ∧ (𝑝 pCnt 𝐵) ≤ 1) → ((𝑝 pCnt 𝐴) + (𝑝 pCnt 𝐵)) ≤ (1 + 1)))
11	5, 8, 9, 9, 10	syl22anc 836	. . . . . . 7 ⊢ (((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) → (((𝑝 pCnt 𝐴) ≤ 1 ∧ (𝑝 pCnt 𝐵) ≤ 1) → ((𝑝 pCnt 𝐴) + (𝑝 pCnt 𝐵)) ≤ (1 + 1)))
12		ax-1ne0 10609	. . . . . . . . . . . 12 ⊢ 1 ≠ 0
13		simpl3 1189	. . . . . . . . . . . . . . . 16 ⊢ (((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) → (𝐴 gcd 𝐵) = 1)
14	13	oveq2d 7175	. . . . . . . . . . . . . . 15 ⊢ (((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) → (𝑝 pCnt (𝐴 gcd 𝐵)) = (𝑝 pCnt 1))
15	3	nnzd 12089	. . . . . . . . . . . . . . . 16 ⊢ (((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) → 𝐴 ∈ ℤ)
16	6	nnzd 12089	. . . . . . . . . . . . . . . 16 ⊢ (((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) → 𝐵 ∈ ℤ)
17		pcgcd 16217	. . . . . . . . . . . . . . . 16 ⊢ ((𝑝 ∈ ℙ ∧ 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) → (𝑝 pCnt (𝐴 gcd 𝐵)) = if((𝑝 pCnt 𝐴) ≤ (𝑝 pCnt 𝐵), (𝑝 pCnt 𝐴), (𝑝 pCnt 𝐵)))
18	2, 15, 16, 17	syl3anc 1367	. . . . . . . . . . . . . . 15 ⊢ (((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) → (𝑝 pCnt (𝐴 gcd 𝐵)) = if((𝑝 pCnt 𝐴) ≤ (𝑝 pCnt 𝐵), (𝑝 pCnt 𝐴), (𝑝 pCnt 𝐵)))
19		pc1 16195	. . . . . . . . . . . . . . . 16 ⊢ (𝑝 ∈ ℙ → (𝑝 pCnt 1) = 0)
20	19	adantl 484	. . . . . . . . . . . . . . 15 ⊢ (((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) → (𝑝 pCnt 1) = 0)
21	14, 18, 20	3eqtr3d 2867	. . . . . . . . . . . . . 14 ⊢ (((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) → if((𝑝 pCnt 𝐴) ≤ (𝑝 pCnt 𝐵), (𝑝 pCnt 𝐴), (𝑝 pCnt 𝐵)) = 0)
22		ifid 4509	. . . . . . . . . . . . . . . 16 ⊢ if((𝑝 pCnt 𝐴) ≤ (𝑝 pCnt 𝐵), 1, 1) = 1
23		ifeq12 4487	. . . . . . . . . . . . . . . 16 ⊢ ((1 = (𝑝 pCnt 𝐴) ∧ 1 = (𝑝 pCnt 𝐵)) → if((𝑝 pCnt 𝐴) ≤ (𝑝 pCnt 𝐵), 1, 1) = if((𝑝 pCnt 𝐴) ≤ (𝑝 pCnt 𝐵), (𝑝 pCnt 𝐴), (𝑝 pCnt 𝐵)))
24	22, 23	syl5eqr 2873	. . . . . . . . . . . . . . 15 ⊢ ((1 = (𝑝 pCnt 𝐴) ∧ 1 = (𝑝 pCnt 𝐵)) → 1 = if((𝑝 pCnt 𝐴) ≤ (𝑝 pCnt 𝐵), (𝑝 pCnt 𝐴), (𝑝 pCnt 𝐵)))
25	24	eqeq1d 2826	. . . . . . . . . . . . . 14 ⊢ ((1 = (𝑝 pCnt 𝐴) ∧ 1 = (𝑝 pCnt 𝐵)) → (1 = 0 ↔ if((𝑝 pCnt 𝐴) ≤ (𝑝 pCnt 𝐵), (𝑝 pCnt 𝐴), (𝑝 pCnt 𝐵)) = 0))
26	21, 25	syl5ibrcom 249	. . . . . . . . . . . . 13 ⊢ (((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) → ((1 = (𝑝 pCnt 𝐴) ∧ 1 = (𝑝 pCnt 𝐵)) → 1 = 0))
27	26	necon3ad 3032	. . . . . . . . . . . 12 ⊢ (((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) → (1 ≠ 0 → ¬ (1 = (𝑝 pCnt 𝐴) ∧ 1 = (𝑝 pCnt 𝐵))))
28	12, 27	mpi 20	. . . . . . . . . . 11 ⊢ (((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) → ¬ (1 = (𝑝 pCnt 𝐴) ∧ 1 = (𝑝 pCnt 𝐵)))
29		ax-1cn 10598	. . . . . . . . . . . . 13 ⊢ 1 ∈ ℂ
30	5	recnd 10672	. . . . . . . . . . . . 13 ⊢ (((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) → (𝑝 pCnt 𝐴) ∈ ℂ)
31		subeq0 10915	. . . . . . . . . . . . 13 ⊢ ((1 ∈ ℂ ∧ (𝑝 pCnt 𝐴) ∈ ℂ) → ((1 − (𝑝 pCnt 𝐴)) = 0 ↔ 1 = (𝑝 pCnt 𝐴)))
32	29, 30, 31	sylancr 589	. . . . . . . . . . . 12 ⊢ (((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) → ((1 − (𝑝 pCnt 𝐴)) = 0 ↔ 1 = (𝑝 pCnt 𝐴)))
33	8	recnd 10672	. . . . . . . . . . . . 13 ⊢ (((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) → (𝑝 pCnt 𝐵) ∈ ℂ)
34		subeq0 10915	. . . . . . . . . . . . 13 ⊢ ((1 ∈ ℂ ∧ (𝑝 pCnt 𝐵) ∈ ℂ) → ((1 − (𝑝 pCnt 𝐵)) = 0 ↔ 1 = (𝑝 pCnt 𝐵)))
35	29, 33, 34	sylancr 589	. . . . . . . . . . . 12 ⊢ (((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) → ((1 − (𝑝 pCnt 𝐵)) = 0 ↔ 1 = (𝑝 pCnt 𝐵)))
36	32, 35	anbi12d 632	. . . . . . . . . . 11 ⊢ (((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) → (((1 − (𝑝 pCnt 𝐴)) = 0 ∧ (1 − (𝑝 pCnt 𝐵)) = 0) ↔ (1 = (𝑝 pCnt 𝐴) ∧ 1 = (𝑝 pCnt 𝐵))))
37	28, 36	mtbird 327	. . . . . . . . . 10 ⊢ (((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) → ¬ ((1 − (𝑝 pCnt 𝐴)) = 0 ∧ (1 − (𝑝 pCnt 𝐵)) = 0))
38	37	adantr 483	. . . . . . . . 9 ⊢ ((((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) ∧ ((𝑝 pCnt 𝐴) ≤ 1 ∧ (𝑝 pCnt 𝐵) ≤ 1)) → ¬ ((1 − (𝑝 pCnt 𝐴)) = 0 ∧ (1 − (𝑝 pCnt 𝐵)) = 0))
39		eqcom 2831	. . . . . . . . . . 11 ⊢ ((1 + 1) = ((𝑝 pCnt 𝐴) + (𝑝 pCnt 𝐵)) ↔ ((𝑝 pCnt 𝐴) + (𝑝 pCnt 𝐵)) = (1 + 1))
40		1re 10644	. . . . . . . . . . . . . . . . . 18 ⊢ 1 ∈ ℝ
41	40, 40	readdcli 10659	. . . . . . . . . . . . . . . . 17 ⊢ (1 + 1) ∈ ℝ
42	41	recni 10658	. . . . . . . . . . . . . . . 16 ⊢ (1 + 1) ∈ ℂ
43	4, 7	nn0addcld 11962	. . . . . . . . . . . . . . . . . 18 ⊢ (((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) → ((𝑝 pCnt 𝐴) + (𝑝 pCnt 𝐵)) ∈ ℕ₀)
44	43	nn0red 11959	. . . . . . . . . . . . . . . . 17 ⊢ (((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) → ((𝑝 pCnt 𝐴) + (𝑝 pCnt 𝐵)) ∈ ℝ)
45	44	recnd 10672	. . . . . . . . . . . . . . . 16 ⊢ (((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) → ((𝑝 pCnt 𝐴) + (𝑝 pCnt 𝐵)) ∈ ℂ)
46		subeq0 10915	. . . . . . . . . . . . . . . 16 ⊢ (((1 + 1) ∈ ℂ ∧ ((𝑝 pCnt 𝐴) + (𝑝 pCnt 𝐵)) ∈ ℂ) → (((1 + 1) − ((𝑝 pCnt 𝐴) + (𝑝 pCnt 𝐵))) = 0 ↔ (1 + 1) = ((𝑝 pCnt 𝐴) + (𝑝 pCnt 𝐵))))
47	42, 45, 46	sylancr 589	. . . . . . . . . . . . . . 15 ⊢ (((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) → (((1 + 1) − ((𝑝 pCnt 𝐴) + (𝑝 pCnt 𝐵))) = 0 ↔ (1 + 1) = ((𝑝 pCnt 𝐴) + (𝑝 pCnt 𝐵))))
48	47, 39	syl6bb 289	. . . . . . . . . . . . . 14 ⊢ (((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) → (((1 + 1) − ((𝑝 pCnt 𝐴) + (𝑝 pCnt 𝐵))) = 0 ↔ ((𝑝 pCnt 𝐴) + (𝑝 pCnt 𝐵)) = (1 + 1)))
49	9	recnd 10672	. . . . . . . . . . . . . . . 16 ⊢ (((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) → 1 ∈ ℂ)
50	49, 49, 30, 33	addsub4d 11047	. . . . . . . . . . . . . . 15 ⊢ (((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) → ((1 + 1) − ((𝑝 pCnt 𝐴) + (𝑝 pCnt 𝐵))) = ((1 − (𝑝 pCnt 𝐴)) + (1 − (𝑝 pCnt 𝐵))))
51	50	eqeq1d 2826	. . . . . . . . . . . . . 14 ⊢ (((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) → (((1 + 1) − ((𝑝 pCnt 𝐴) + (𝑝 pCnt 𝐵))) = 0 ↔ ((1 − (𝑝 pCnt 𝐴)) + (1 − (𝑝 pCnt 𝐵))) = 0))
52	48, 51	bitr3d 283	. . . . . . . . . . . . 13 ⊢ (((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) → (((𝑝 pCnt 𝐴) + (𝑝 pCnt 𝐵)) = (1 + 1) ↔ ((1 − (𝑝 pCnt 𝐴)) + (1 − (𝑝 pCnt 𝐵))) = 0))
53	52	adantr 483	. . . . . . . . . . . 12 ⊢ ((((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) ∧ ((𝑝 pCnt 𝐴) ≤ 1 ∧ (𝑝 pCnt 𝐵) ≤ 1)) → (((𝑝 pCnt 𝐴) + (𝑝 pCnt 𝐵)) = (1 + 1) ↔ ((1 − (𝑝 pCnt 𝐴)) + (1 − (𝑝 pCnt 𝐵))) = 0))
54		subge0 11156	. . . . . . . . . . . . . . . 16 ⊢ ((1 ∈ ℝ ∧ (𝑝 pCnt 𝐴) ∈ ℝ) → (0 ≤ (1 − (𝑝 pCnt 𝐴)) ↔ (𝑝 pCnt 𝐴) ≤ 1))
55	40, 5, 54	sylancr 589	. . . . . . . . . . . . . . 15 ⊢ (((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) → (0 ≤ (1 − (𝑝 pCnt 𝐴)) ↔ (𝑝 pCnt 𝐴) ≤ 1))
56		subge0 11156	. . . . . . . . . . . . . . . 16 ⊢ ((1 ∈ ℝ ∧ (𝑝 pCnt 𝐵) ∈ ℝ) → (0 ≤ (1 − (𝑝 pCnt 𝐵)) ↔ (𝑝 pCnt 𝐵) ≤ 1))
57	40, 8, 56	sylancr 589	. . . . . . . . . . . . . . 15 ⊢ (((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) → (0 ≤ (1 − (𝑝 pCnt 𝐵)) ↔ (𝑝 pCnt 𝐵) ≤ 1))
58	55, 57	anbi12d 632	. . . . . . . . . . . . . 14 ⊢ (((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) → ((0 ≤ (1 − (𝑝 pCnt 𝐴)) ∧ 0 ≤ (1 − (𝑝 pCnt 𝐵))) ↔ ((𝑝 pCnt 𝐴) ≤ 1 ∧ (𝑝 pCnt 𝐵) ≤ 1)))
59		resubcl 10953	. . . . . . . . . . . . . . . 16 ⊢ ((1 ∈ ℝ ∧ (𝑝 pCnt 𝐴) ∈ ℝ) → (1 − (𝑝 pCnt 𝐴)) ∈ ℝ)
60	40, 5, 59	sylancr 589	. . . . . . . . . . . . . . 15 ⊢ (((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) → (1 − (𝑝 pCnt 𝐴)) ∈ ℝ)
61		resubcl 10953	. . . . . . . . . . . . . . . 16 ⊢ ((1 ∈ ℝ ∧ (𝑝 pCnt 𝐵) ∈ ℝ) → (1 − (𝑝 pCnt 𝐵)) ∈ ℝ)
62	40, 8, 61	sylancr 589	. . . . . . . . . . . . . . 15 ⊢ (((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) → (1 − (𝑝 pCnt 𝐵)) ∈ ℝ)
63		add20 11155	. . . . . . . . . . . . . . . . 17 ⊢ ((((1 − (𝑝 pCnt 𝐴)) ∈ ℝ ∧ 0 ≤ (1 − (𝑝 pCnt 𝐴))) ∧ ((1 − (𝑝 pCnt 𝐵)) ∈ ℝ ∧ 0 ≤ (1 − (𝑝 pCnt 𝐵)))) → (((1 − (𝑝 pCnt 𝐴)) + (1 − (𝑝 pCnt 𝐵))) = 0 ↔ ((1 − (𝑝 pCnt 𝐴)) = 0 ∧ (1 − (𝑝 pCnt 𝐵)) = 0)))
64	63	an4s 658	. . . . . . . . . . . . . . . 16 ⊢ ((((1 − (𝑝 pCnt 𝐴)) ∈ ℝ ∧ (1 − (𝑝 pCnt 𝐵)) ∈ ℝ) ∧ (0 ≤ (1 − (𝑝 pCnt 𝐴)) ∧ 0 ≤ (1 − (𝑝 pCnt 𝐵)))) → (((1 − (𝑝 pCnt 𝐴)) + (1 − (𝑝 pCnt 𝐵))) = 0 ↔ ((1 − (𝑝 pCnt 𝐴)) = 0 ∧ (1 − (𝑝 pCnt 𝐵)) = 0)))
65	64	ex 415	. . . . . . . . . . . . . . 15 ⊢ (((1 − (𝑝 pCnt 𝐴)) ∈ ℝ ∧ (1 − (𝑝 pCnt 𝐵)) ∈ ℝ) → ((0 ≤ (1 − (𝑝 pCnt 𝐴)) ∧ 0 ≤ (1 − (𝑝 pCnt 𝐵))) → (((1 − (𝑝 pCnt 𝐴)) + (1 − (𝑝 pCnt 𝐵))) = 0 ↔ ((1 − (𝑝 pCnt 𝐴)) = 0 ∧ (1 − (𝑝 pCnt 𝐵)) = 0))))
66	60, 62, 65	syl2anc 586	. . . . . . . . . . . . . 14 ⊢ (((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) → ((0 ≤ (1 − (𝑝 pCnt 𝐴)) ∧ 0 ≤ (1 − (𝑝 pCnt 𝐵))) → (((1 − (𝑝 pCnt 𝐴)) + (1 − (𝑝 pCnt 𝐵))) = 0 ↔ ((1 − (𝑝 pCnt 𝐴)) = 0 ∧ (1 − (𝑝 pCnt 𝐵)) = 0))))
67	58, 66	sylbird 262	. . . . . . . . . . . . 13 ⊢ (((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) → (((𝑝 pCnt 𝐴) ≤ 1 ∧ (𝑝 pCnt 𝐵) ≤ 1) → (((1 − (𝑝 pCnt 𝐴)) + (1 − (𝑝 pCnt 𝐵))) = 0 ↔ ((1 − (𝑝 pCnt 𝐴)) = 0 ∧ (1 − (𝑝 pCnt 𝐵)) = 0))))
68	67	imp 409	. . . . . . . . . . . 12 ⊢ ((((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) ∧ ((𝑝 pCnt 𝐴) ≤ 1 ∧ (𝑝 pCnt 𝐵) ≤ 1)) → (((1 − (𝑝 pCnt 𝐴)) + (1 − (𝑝 pCnt 𝐵))) = 0 ↔ ((1 − (𝑝 pCnt 𝐴)) = 0 ∧ (1 − (𝑝 pCnt 𝐵)) = 0)))
69	53, 68	bitrd 281	. . . . . . . . . . 11 ⊢ ((((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) ∧ ((𝑝 pCnt 𝐴) ≤ 1 ∧ (𝑝 pCnt 𝐵) ≤ 1)) → (((𝑝 pCnt 𝐴) + (𝑝 pCnt 𝐵)) = (1 + 1) ↔ ((1 − (𝑝 pCnt 𝐴)) = 0 ∧ (1 − (𝑝 pCnt 𝐵)) = 0)))
70	39, 69	syl5bb 285	. . . . . . . . . 10 ⊢ ((((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) ∧ ((𝑝 pCnt 𝐴) ≤ 1 ∧ (𝑝 pCnt 𝐵) ≤ 1)) → ((1 + 1) = ((𝑝 pCnt 𝐴) + (𝑝 pCnt 𝐵)) ↔ ((1 − (𝑝 pCnt 𝐴)) = 0 ∧ (1 − (𝑝 pCnt 𝐵)) = 0)))
71	70	necon3abid 3055	. . . . . . . . 9 ⊢ ((((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) ∧ ((𝑝 pCnt 𝐴) ≤ 1 ∧ (𝑝 pCnt 𝐵) ≤ 1)) → ((1 + 1) ≠ ((𝑝 pCnt 𝐴) + (𝑝 pCnt 𝐵)) ↔ ¬ ((1 − (𝑝 pCnt 𝐴)) = 0 ∧ (1 − (𝑝 pCnt 𝐵)) = 0)))
72	38, 71	mpbird 259	. . . . . . . 8 ⊢ ((((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) ∧ ((𝑝 pCnt 𝐴) ≤ 1 ∧ (𝑝 pCnt 𝐵) ≤ 1)) → (1 + 1) ≠ ((𝑝 pCnt 𝐴) + (𝑝 pCnt 𝐵)))
73	72	ex 415	. . . . . . 7 ⊢ (((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) → (((𝑝 pCnt 𝐴) ≤ 1 ∧ (𝑝 pCnt 𝐵) ≤ 1) → (1 + 1) ≠ ((𝑝 pCnt 𝐴) + (𝑝 pCnt 𝐵))))
74	11, 73	jcad 515	. . . . . 6 ⊢ (((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) → (((𝑝 pCnt 𝐴) ≤ 1 ∧ (𝑝 pCnt 𝐵) ≤ 1) → (((𝑝 pCnt 𝐴) + (𝑝 pCnt 𝐵)) ≤ (1 + 1) ∧ (1 + 1) ≠ ((𝑝 pCnt 𝐴) + (𝑝 pCnt 𝐵)))))
75		nnz 12007	. . . . . . . . . . 11 ⊢ (𝐴 ∈ ℕ → 𝐴 ∈ ℤ)
76		nnne0 11674	. . . . . . . . . . 11 ⊢ (𝐴 ∈ ℕ → 𝐴 ≠ 0)
77	75, 76	jca 514	. . . . . . . . . 10 ⊢ (𝐴 ∈ ℕ → (𝐴 ∈ ℤ ∧ 𝐴 ≠ 0))
78	3, 77	syl 17	. . . . . . . . 9 ⊢ (((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) → (𝐴 ∈ ℤ ∧ 𝐴 ≠ 0))
79		nnz 12007	. . . . . . . . . . 11 ⊢ (𝐵 ∈ ℕ → 𝐵 ∈ ℤ)
80		nnne0 11674	. . . . . . . . . . 11 ⊢ (𝐵 ∈ ℕ → 𝐵 ≠ 0)
81	79, 80	jca 514	. . . . . . . . . 10 ⊢ (𝐵 ∈ ℕ → (𝐵 ∈ ℤ ∧ 𝐵 ≠ 0))
82	6, 81	syl 17	. . . . . . . . 9 ⊢ (((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) → (𝐵 ∈ ℤ ∧ 𝐵 ≠ 0))
83		pcmul 16191	. . . . . . . . 9 ⊢ ((𝑝 ∈ ℙ ∧ (𝐴 ∈ ℤ ∧ 𝐴 ≠ 0) ∧ (𝐵 ∈ ℤ ∧ 𝐵 ≠ 0)) → (𝑝 pCnt (𝐴 · 𝐵)) = ((𝑝 pCnt 𝐴) + (𝑝 pCnt 𝐵)))
84	2, 78, 82, 83	syl3anc 1367	. . . . . . . 8 ⊢ (((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) → (𝑝 pCnt (𝐴 · 𝐵)) = ((𝑝 pCnt 𝐴) + (𝑝 pCnt 𝐵)))
85	84	breq1d 5079	. . . . . . 7 ⊢ (((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) → ((𝑝 pCnt (𝐴 · 𝐵)) ≤ 1 ↔ ((𝑝 pCnt 𝐴) + (𝑝 pCnt 𝐵)) ≤ 1))
86		1nn0 11916	. . . . . . . 8 ⊢ 1 ∈ ℕ₀
87		nn0leltp1 12044	. . . . . . . 8 ⊢ ((((𝑝 pCnt 𝐴) + (𝑝 pCnt 𝐵)) ∈ ℕ₀ ∧ 1 ∈ ℕ₀) → (((𝑝 pCnt 𝐴) + (𝑝 pCnt 𝐵)) ≤ 1 ↔ ((𝑝 pCnt 𝐴) + (𝑝 pCnt 𝐵)) < (1 + 1)))
88	43, 86, 87	sylancl 588	. . . . . . 7 ⊢ (((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) → (((𝑝 pCnt 𝐴) + (𝑝 pCnt 𝐵)) ≤ 1 ↔ ((𝑝 pCnt 𝐴) + (𝑝 pCnt 𝐵)) < (1 + 1)))
89		ltlen 10744	. . . . . . . 8 ⊢ ((((𝑝 pCnt 𝐴) + (𝑝 pCnt 𝐵)) ∈ ℝ ∧ (1 + 1) ∈ ℝ) → (((𝑝 pCnt 𝐴) + (𝑝 pCnt 𝐵)) < (1 + 1) ↔ (((𝑝 pCnt 𝐴) + (𝑝 pCnt 𝐵)) ≤ (1 + 1) ∧ (1 + 1) ≠ ((𝑝 pCnt 𝐴) + (𝑝 pCnt 𝐵)))))
90	44, 41, 89	sylancl 588	. . . . . . 7 ⊢ (((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) → (((𝑝 pCnt 𝐴) + (𝑝 pCnt 𝐵)) < (1 + 1) ↔ (((𝑝 pCnt 𝐴) + (𝑝 pCnt 𝐵)) ≤ (1 + 1) ∧ (1 + 1) ≠ ((𝑝 pCnt 𝐴) + (𝑝 pCnt 𝐵)))))
91	85, 88, 90	3bitrd 307	. . . . . 6 ⊢ (((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) → ((𝑝 pCnt (𝐴 · 𝐵)) ≤ 1 ↔ (((𝑝 pCnt 𝐴) + (𝑝 pCnt 𝐵)) ≤ (1 + 1) ∧ (1 + 1) ≠ ((𝑝 pCnt 𝐴) + (𝑝 pCnt 𝐵)))))
92	74, 91	sylibrd 261	. . . . 5 ⊢ (((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ 𝑝 ∈ ℙ) → (((𝑝 pCnt 𝐴) ≤ 1 ∧ (𝑝 pCnt 𝐵) ≤ 1) → (𝑝 pCnt (𝐴 · 𝐵)) ≤ 1))
93	92	ralimdva 3180	. . . 4 ⊢ ((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) → (∀𝑝 ∈ ℙ ((𝑝 pCnt 𝐴) ≤ 1 ∧ (𝑝 pCnt 𝐵) ≤ 1) → ∀𝑝 ∈ ℙ (𝑝 pCnt (𝐴 · 𝐵)) ≤ 1))
94	1, 93	syl5bir 245	. . 3 ⊢ ((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) → ((∀𝑝 ∈ ℙ (𝑝 pCnt 𝐴) ≤ 1 ∧ ∀𝑝 ∈ ℙ (𝑝 pCnt 𝐵) ≤ 1) → ∀𝑝 ∈ ℙ (𝑝 pCnt (𝐴 · 𝐵)) ≤ 1))
95		issqf 25716	. . . . 5 ⊢ (𝐴 ∈ ℕ → ((μ‘𝐴) ≠ 0 ↔ ∀𝑝 ∈ ℙ (𝑝 pCnt 𝐴) ≤ 1))
96		issqf 25716	. . . . 5 ⊢ (𝐵 ∈ ℕ → ((μ‘𝐵) ≠ 0 ↔ ∀𝑝 ∈ ℙ (𝑝 pCnt 𝐵) ≤ 1))
97	95, 96	bi2anan9 637	. . . 4 ⊢ ((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ) → (((μ‘𝐴) ≠ 0 ∧ (μ‘𝐵) ≠ 0) ↔ (∀𝑝 ∈ ℙ (𝑝 pCnt 𝐴) ≤ 1 ∧ ∀𝑝 ∈ ℙ (𝑝 pCnt 𝐵) ≤ 1)))
98	97	3adant3 1128	. . 3 ⊢ ((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) → (((μ‘𝐴) ≠ 0 ∧ (μ‘𝐵) ≠ 0) ↔ (∀𝑝 ∈ ℙ (𝑝 pCnt 𝐴) ≤ 1 ∧ ∀𝑝 ∈ ℙ (𝑝 pCnt 𝐵) ≤ 1)))
99		nnmulcl 11664	. . . . 5 ⊢ ((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ) → (𝐴 · 𝐵) ∈ ℕ)
100	99	3adant3 1128	. . . 4 ⊢ ((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) → (𝐴 · 𝐵) ∈ ℕ)
101		issqf 25716	. . . 4 ⊢ ((𝐴 · 𝐵) ∈ ℕ → ((μ‘(𝐴 · 𝐵)) ≠ 0 ↔ ∀𝑝 ∈ ℙ (𝑝 pCnt (𝐴 · 𝐵)) ≤ 1))
102	100, 101	syl 17	. . 3 ⊢ ((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) → ((μ‘(𝐴 · 𝐵)) ≠ 0 ↔ ∀𝑝 ∈ ℙ (𝑝 pCnt (𝐴 · 𝐵)) ≤ 1))
103	94, 98, 102	3imtr4d 296	. 2 ⊢ ((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) → (((μ‘𝐴) ≠ 0 ∧ (μ‘𝐵) ≠ 0) → (μ‘(𝐴 · 𝐵)) ≠ 0))
104	103	imp 409	1 ⊢ (((𝐴 ∈ ℕ ∧ 𝐵 ∈ ℕ ∧ (𝐴 gcd 𝐵) = 1) ∧ ((μ‘𝐴) ≠ 0 ∧ (μ‘𝐵) ≠ 0)) → (μ‘(𝐴 · 𝐵)) ≠ 0)

Colors of variables: wff setvar class

Syntax hints: ¬ wn 3 → wi 4 ↔ wb 208 ∧ wa 398 ∧ w3a 1083 = wceq 1536 ∈ wcel 2113 ≠ wne 3019 ∀wral 3141 ifcif 4470 class class class wbr 5069 ‘cfv 6358 (class class class)co 7159 ℂcc 10538 ℝcr 10539 0cc0 10540 1c1 10541 + caddc 10543 · cmul 10545 < clt 10678 ≤ cle 10679 − cmin 10873 ℕcn 11641 ℕ₀cn0 11900 ℤcz 11984 gcd cgcd 15846 ℙcprime 16018 pCnt cpc 16176 μcmu 25675

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1969 ax-7 2014 ax-8 2115 ax-9 2123 ax-10 2144 ax-11 2160 ax-12 2176 ax-ext 2796 ax-sep 5206 ax-nul 5213 ax-pow 5269 ax-pr 5333 ax-un 7464 ax-cnex 10596 ax-resscn 10597 ax-1cn 10598 ax-icn 10599 ax-addcl 10600 ax-addrcl 10601 ax-mulcl 10602 ax-mulrcl 10603 ax-mulcom 10604 ax-addass 10605 ax-mulass 10606 ax-distr 10607 ax-i2m1 10608 ax-1ne0 10609 ax-1rid 10610 ax-rnegex 10611 ax-rrecex 10612 ax-cnre 10613 ax-pre-lttri 10614 ax-pre-lttrn 10615 ax-pre-ltadd 10616 ax-pre-mulgt0 10617 ax-pre-sup 10618

This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3or 1084 df-3an 1085 df-tru 1539 df-ex 1780 df-nf 1784 df-sb 2069 df-mo 2621 df-eu 2653 df-clab 2803 df-cleq 2817 df-clel 2896 df-nfc 2966 df-ne 3020 df-nel 3127 df-ral 3146 df-rex 3147 df-reu 3148 df-rmo 3149 df-rab 3150 df-v 3499 df-sbc 3776 df-csb 3887 df-dif 3942 df-un 3944 df-in 3946 df-ss 3955 df-pss 3957 df-nul 4295 df-if 4471 df-pw 4544 df-sn 4571 df-pr 4573 df-tp 4575 df-op 4577 df-uni 4842 df-int 4880 df-iun 4924 df-br 5070 df-opab 5132 df-mpt 5150 df-tr 5176 df-id 5463 df-eprel 5468 df-po 5477 df-so 5478 df-fr 5517 df-we 5519 df-xp 5564 df-rel 5565 df-cnv 5566 df-co 5567 df-dm 5568 df-rn 5569 df-res 5570 df-ima 5571 df-pred 6151 df-ord 6197 df-on 6198 df-lim 6199 df-suc 6200 df-iota 6317 df-fun 6360 df-fn 6361 df-f 6362 df-f1 6363 df-fo 6364 df-f1o 6365 df-fv 6366 df-riota 7117 df-ov 7162 df-oprab 7163 df-mpo 7164 df-om 7584 df-1st 7692 df-2nd 7693 df-wrecs 7950 df-recs 8011 df-rdg 8049 df-1o 8105 df-2o 8106 df-er 8292 df-en 8513 df-dom 8514 df-sdom 8515 df-fin 8516 df-sup 8909 df-inf 8910 df-card 9371 df-pnf 10680 df-mnf 10681 df-xr 10682 df-ltxr 10683 df-le 10684 df-sub 10875 df-neg 10876 df-div 11301 df-nn 11642 df-2 11703 df-3 11704 df-n0 11901 df-z 11985 df-uz 12247 df-q 12352 df-rp 12393 df-fz 12896 df-fl 13165 df-mod 13241 df-seq 13373 df-exp 13433 df-hash 13694 df-cj 14461 df-re 14462 df-im 14463 df-sqrt 14597 df-abs 14598 df-dvds 15611 df-gcd 15847 df-prm 16019 df-pc 16177 df-mu 25681

This theorem is referenced by: mumul 25761

W3C validator