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Theorem fvprmselgcd1 16957

Description: The greatest common divisor of two values of the prime selection function for different arguments is 1. (Contributed by AV, 19-Aug-2020.)

**Hypothesis**
Ref	Expression
fvprmselelfz.f	⊢ 𝐹 = (𝑚 ∈ ℕ ↦ if(𝑚 ∈ ℙ, 𝑚, 1))

**Assertion**
Ref	Expression
fvprmselgcd1	⊢ ((𝑋 ∈ (1...𝑁) ∧ 𝑌 ∈ (1...𝑁) ∧ 𝑋 ≠ 𝑌) → ((𝐹‘𝑋) gcd (𝐹‘𝑌)) = 1)

Distinct variable groups: 𝑚,𝑁 𝑚,𝑋 𝑚,𝑌 Allowed substitution hint: 𝐹(𝑚)

**Proof of Theorem fvprmselgcd1**
Step	Hyp	Ref	Expression
1		fvprmselelfz.f	. . . . . 6 ⊢ 𝐹 = (𝑚 ∈ ℕ ↦ if(𝑚 ∈ ℙ, 𝑚, 1))
2		eleq1 2819	. . . . . . . 8 ⊢ (𝑚 = 𝑋 → (𝑚 ∈ ℙ ↔ 𝑋 ∈ ℙ))
3		id 22	. . . . . . . 8 ⊢ (𝑚 = 𝑋 → 𝑚 = 𝑋)
4	2, 3	ifbieq1d 4500	. . . . . . 7 ⊢ (𝑚 = 𝑋 → if(𝑚 ∈ ℙ, 𝑚, 1) = if(𝑋 ∈ ℙ, 𝑋, 1))
5		iftrue 4481	. . . . . . . 8 ⊢ (𝑋 ∈ ℙ → if(𝑋 ∈ ℙ, 𝑋, 1) = 𝑋)
6	5	ad2antrr 726	. . . . . . 7 ⊢ (((𝑋 ∈ ℙ ∧ 𝑌 ∈ ℙ) ∧ (𝑋 ∈ (1...𝑁) ∧ 𝑌 ∈ (1...𝑁) ∧ 𝑋 ≠ 𝑌)) → if(𝑋 ∈ ℙ, 𝑋, 1) = 𝑋)
7	4, 6	sylan9eqr 2788	. . . . . 6 ⊢ ((((𝑋 ∈ ℙ ∧ 𝑌 ∈ ℙ) ∧ (𝑋 ∈ (1...𝑁) ∧ 𝑌 ∈ (1...𝑁) ∧ 𝑋 ≠ 𝑌)) ∧ 𝑚 = 𝑋) → if(𝑚 ∈ ℙ, 𝑚, 1) = 𝑋)
8		elfznn 13453	. . . . . . . 8 ⊢ (𝑋 ∈ (1...𝑁) → 𝑋 ∈ ℕ)
9	8	3ad2ant1 1133	. . . . . . 7 ⊢ ((𝑋 ∈ (1...𝑁) ∧ 𝑌 ∈ (1...𝑁) ∧ 𝑋 ≠ 𝑌) → 𝑋 ∈ ℕ)
10	9	adantl 481	. . . . . 6 ⊢ (((𝑋 ∈ ℙ ∧ 𝑌 ∈ ℙ) ∧ (𝑋 ∈ (1...𝑁) ∧ 𝑌 ∈ (1...𝑁) ∧ 𝑋 ≠ 𝑌)) → 𝑋 ∈ ℕ)
11	1, 7, 10, 10	fvmptd2 6937	. . . . 5 ⊢ (((𝑋 ∈ ℙ ∧ 𝑌 ∈ ℙ) ∧ (𝑋 ∈ (1...𝑁) ∧ 𝑌 ∈ (1...𝑁) ∧ 𝑋 ≠ 𝑌)) → (𝐹‘𝑋) = 𝑋)
12		eleq1 2819	. . . . . . . 8 ⊢ (𝑚 = 𝑌 → (𝑚 ∈ ℙ ↔ 𝑌 ∈ ℙ))
13		id 22	. . . . . . . 8 ⊢ (𝑚 = 𝑌 → 𝑚 = 𝑌)
14	12, 13	ifbieq1d 4500	. . . . . . 7 ⊢ (𝑚 = 𝑌 → if(𝑚 ∈ ℙ, 𝑚, 1) = if(𝑌 ∈ ℙ, 𝑌, 1))
15		iftrue 4481	. . . . . . . 8 ⊢ (𝑌 ∈ ℙ → if(𝑌 ∈ ℙ, 𝑌, 1) = 𝑌)
16	15	ad2antlr 727	. . . . . . 7 ⊢ (((𝑋 ∈ ℙ ∧ 𝑌 ∈ ℙ) ∧ (𝑋 ∈ (1...𝑁) ∧ 𝑌 ∈ (1...𝑁) ∧ 𝑋 ≠ 𝑌)) → if(𝑌 ∈ ℙ, 𝑌, 1) = 𝑌)
17	14, 16	sylan9eqr 2788	. . . . . 6 ⊢ ((((𝑋 ∈ ℙ ∧ 𝑌 ∈ ℙ) ∧ (𝑋 ∈ (1...𝑁) ∧ 𝑌 ∈ (1...𝑁) ∧ 𝑋 ≠ 𝑌)) ∧ 𝑚 = 𝑌) → if(𝑚 ∈ ℙ, 𝑚, 1) = 𝑌)
18		elfznn 13453	. . . . . . . 8 ⊢ (𝑌 ∈ (1...𝑁) → 𝑌 ∈ ℕ)
19	18	3ad2ant2 1134	. . . . . . 7 ⊢ ((𝑋 ∈ (1...𝑁) ∧ 𝑌 ∈ (1...𝑁) ∧ 𝑋 ≠ 𝑌) → 𝑌 ∈ ℕ)
20	19	adantl 481	. . . . . 6 ⊢ (((𝑋 ∈ ℙ ∧ 𝑌 ∈ ℙ) ∧ (𝑋 ∈ (1...𝑁) ∧ 𝑌 ∈ (1...𝑁) ∧ 𝑋 ≠ 𝑌)) → 𝑌 ∈ ℕ)
21	1, 17, 20, 20	fvmptd2 6937	. . . . 5 ⊢ (((𝑋 ∈ ℙ ∧ 𝑌 ∈ ℙ) ∧ (𝑋 ∈ (1...𝑁) ∧ 𝑌 ∈ (1...𝑁) ∧ 𝑋 ≠ 𝑌)) → (𝐹‘𝑌) = 𝑌)
22	11, 21	oveq12d 7364	. . . 4 ⊢ (((𝑋 ∈ ℙ ∧ 𝑌 ∈ ℙ) ∧ (𝑋 ∈ (1...𝑁) ∧ 𝑌 ∈ (1...𝑁) ∧ 𝑋 ≠ 𝑌)) → ((𝐹‘𝑋) gcd (𝐹‘𝑌)) = (𝑋 gcd 𝑌))
23		prmrp 16623	. . . . . . 7 ⊢ ((𝑋 ∈ ℙ ∧ 𝑌 ∈ ℙ) → ((𝑋 gcd 𝑌) = 1 ↔ 𝑋 ≠ 𝑌))
24	23	biimprcd 250	. . . . . 6 ⊢ (𝑋 ≠ 𝑌 → ((𝑋 ∈ ℙ ∧ 𝑌 ∈ ℙ) → (𝑋 gcd 𝑌) = 1))
25	24	3ad2ant3 1135	. . . . 5 ⊢ ((𝑋 ∈ (1...𝑁) ∧ 𝑌 ∈ (1...𝑁) ∧ 𝑋 ≠ 𝑌) → ((𝑋 ∈ ℙ ∧ 𝑌 ∈ ℙ) → (𝑋 gcd 𝑌) = 1))
26	25	impcom 407	. . . 4 ⊢ (((𝑋 ∈ ℙ ∧ 𝑌 ∈ ℙ) ∧ (𝑋 ∈ (1...𝑁) ∧ 𝑌 ∈ (1...𝑁) ∧ 𝑋 ≠ 𝑌)) → (𝑋 gcd 𝑌) = 1)
27	22, 26	eqtrd 2766	. . 3 ⊢ (((𝑋 ∈ ℙ ∧ 𝑌 ∈ ℙ) ∧ (𝑋 ∈ (1...𝑁) ∧ 𝑌 ∈ (1...𝑁) ∧ 𝑋 ≠ 𝑌)) → ((𝐹‘𝑋) gcd (𝐹‘𝑌)) = 1)
28	27	ex 412	. 2 ⊢ ((𝑋 ∈ ℙ ∧ 𝑌 ∈ ℙ) → ((𝑋 ∈ (1...𝑁) ∧ 𝑌 ∈ (1...𝑁) ∧ 𝑋 ≠ 𝑌) → ((𝐹‘𝑋) gcd (𝐹‘𝑌)) = 1))
29	5	ad2antrr 726	. . . . . . 7 ⊢ (((𝑋 ∈ ℙ ∧ ¬ 𝑌 ∈ ℙ) ∧ (𝑋 ∈ (1...𝑁) ∧ 𝑌 ∈ (1...𝑁) ∧ 𝑋 ≠ 𝑌)) → if(𝑋 ∈ ℙ, 𝑋, 1) = 𝑋)
30	4, 29	sylan9eqr 2788	. . . . . 6 ⊢ ((((𝑋 ∈ ℙ ∧ ¬ 𝑌 ∈ ℙ) ∧ (𝑋 ∈ (1...𝑁) ∧ 𝑌 ∈ (1...𝑁) ∧ 𝑋 ≠ 𝑌)) ∧ 𝑚 = 𝑋) → if(𝑚 ∈ ℙ, 𝑚, 1) = 𝑋)
31	9	adantl 481	. . . . . 6 ⊢ (((𝑋 ∈ ℙ ∧ ¬ 𝑌 ∈ ℙ) ∧ (𝑋 ∈ (1...𝑁) ∧ 𝑌 ∈ (1...𝑁) ∧ 𝑋 ≠ 𝑌)) → 𝑋 ∈ ℕ)
32	1, 30, 31, 31	fvmptd2 6937	. . . . 5 ⊢ (((𝑋 ∈ ℙ ∧ ¬ 𝑌 ∈ ℙ) ∧ (𝑋 ∈ (1...𝑁) ∧ 𝑌 ∈ (1...𝑁) ∧ 𝑋 ≠ 𝑌)) → (𝐹‘𝑋) = 𝑋)
33		iffalse 4484	. . . . . . . 8 ⊢ (¬ 𝑌 ∈ ℙ → if(𝑌 ∈ ℙ, 𝑌, 1) = 1)
34	33	ad2antlr 727	. . . . . . 7 ⊢ (((𝑋 ∈ ℙ ∧ ¬ 𝑌 ∈ ℙ) ∧ (𝑋 ∈ (1...𝑁) ∧ 𝑌 ∈ (1...𝑁) ∧ 𝑋 ≠ 𝑌)) → if(𝑌 ∈ ℙ, 𝑌, 1) = 1)
35	14, 34	sylan9eqr 2788	. . . . . 6 ⊢ ((((𝑋 ∈ ℙ ∧ ¬ 𝑌 ∈ ℙ) ∧ (𝑋 ∈ (1...𝑁) ∧ 𝑌 ∈ (1...𝑁) ∧ 𝑋 ≠ 𝑌)) ∧ 𝑚 = 𝑌) → if(𝑚 ∈ ℙ, 𝑚, 1) = 1)
36	19	adantl 481	. . . . . 6 ⊢ (((𝑋 ∈ ℙ ∧ ¬ 𝑌 ∈ ℙ) ∧ (𝑋 ∈ (1...𝑁) ∧ 𝑌 ∈ (1...𝑁) ∧ 𝑋 ≠ 𝑌)) → 𝑌 ∈ ℕ)
37		1nn 12136	. . . . . . 7 ⊢ 1 ∈ ℕ
38	37	a1i 11	. . . . . 6 ⊢ (((𝑋 ∈ ℙ ∧ ¬ 𝑌 ∈ ℙ) ∧ (𝑋 ∈ (1...𝑁) ∧ 𝑌 ∈ (1...𝑁) ∧ 𝑋 ≠ 𝑌)) → 1 ∈ ℕ)
39	1, 35, 36, 38	fvmptd2 6937	. . . . 5 ⊢ (((𝑋 ∈ ℙ ∧ ¬ 𝑌 ∈ ℙ) ∧ (𝑋 ∈ (1...𝑁) ∧ 𝑌 ∈ (1...𝑁) ∧ 𝑋 ≠ 𝑌)) → (𝐹‘𝑌) = 1)
40	32, 39	oveq12d 7364	. . . 4 ⊢ (((𝑋 ∈ ℙ ∧ ¬ 𝑌 ∈ ℙ) ∧ (𝑋 ∈ (1...𝑁) ∧ 𝑌 ∈ (1...𝑁) ∧ 𝑋 ≠ 𝑌)) → ((𝐹‘𝑋) gcd (𝐹‘𝑌)) = (𝑋 gcd 1))
41		prmz 16586	. . . . . 6 ⊢ (𝑋 ∈ ℙ → 𝑋 ∈ ℤ)
42		gcd1 16439	. . . . . 6 ⊢ (𝑋 ∈ ℤ → (𝑋 gcd 1) = 1)
43	41, 42	syl 17	. . . . 5 ⊢ (𝑋 ∈ ℙ → (𝑋 gcd 1) = 1)
44	43	ad2antrr 726	. . . 4 ⊢ (((𝑋 ∈ ℙ ∧ ¬ 𝑌 ∈ ℙ) ∧ (𝑋 ∈ (1...𝑁) ∧ 𝑌 ∈ (1...𝑁) ∧ 𝑋 ≠ 𝑌)) → (𝑋 gcd 1) = 1)
45	40, 44	eqtrd 2766	. . 3 ⊢ (((𝑋 ∈ ℙ ∧ ¬ 𝑌 ∈ ℙ) ∧ (𝑋 ∈ (1...𝑁) ∧ 𝑌 ∈ (1...𝑁) ∧ 𝑋 ≠ 𝑌)) → ((𝐹‘𝑋) gcd (𝐹‘𝑌)) = 1)
46	45	ex 412	. 2 ⊢ ((𝑋 ∈ ℙ ∧ ¬ 𝑌 ∈ ℙ) → ((𝑋 ∈ (1...𝑁) ∧ 𝑌 ∈ (1...𝑁) ∧ 𝑋 ≠ 𝑌) → ((𝐹‘𝑋) gcd (𝐹‘𝑌)) = 1))
47		iffalse 4484	. . . . . . . 8 ⊢ (¬ 𝑋 ∈ ℙ → if(𝑋 ∈ ℙ, 𝑋, 1) = 1)
48	47	ad2antrr 726	. . . . . . 7 ⊢ (((¬ 𝑋 ∈ ℙ ∧ 𝑌 ∈ ℙ) ∧ (𝑋 ∈ (1...𝑁) ∧ 𝑌 ∈ (1...𝑁) ∧ 𝑋 ≠ 𝑌)) → if(𝑋 ∈ ℙ, 𝑋, 1) = 1)
49	4, 48	sylan9eqr 2788	. . . . . 6 ⊢ ((((¬ 𝑋 ∈ ℙ ∧ 𝑌 ∈ ℙ) ∧ (𝑋 ∈ (1...𝑁) ∧ 𝑌 ∈ (1...𝑁) ∧ 𝑋 ≠ 𝑌)) ∧ 𝑚 = 𝑋) → if(𝑚 ∈ ℙ, 𝑚, 1) = 1)
50	9	adantl 481	. . . . . 6 ⊢ (((¬ 𝑋 ∈ ℙ ∧ 𝑌 ∈ ℙ) ∧ (𝑋 ∈ (1...𝑁) ∧ 𝑌 ∈ (1...𝑁) ∧ 𝑋 ≠ 𝑌)) → 𝑋 ∈ ℕ)
51	37	a1i 11	. . . . . 6 ⊢ (((¬ 𝑋 ∈ ℙ ∧ 𝑌 ∈ ℙ) ∧ (𝑋 ∈ (1...𝑁) ∧ 𝑌 ∈ (1...𝑁) ∧ 𝑋 ≠ 𝑌)) → 1 ∈ ℕ)
52	1, 49, 50, 51	fvmptd2 6937	. . . . 5 ⊢ (((¬ 𝑋 ∈ ℙ ∧ 𝑌 ∈ ℙ) ∧ (𝑋 ∈ (1...𝑁) ∧ 𝑌 ∈ (1...𝑁) ∧ 𝑋 ≠ 𝑌)) → (𝐹‘𝑋) = 1)
53	15	ad2antlr 727	. . . . . . 7 ⊢ (((¬ 𝑋 ∈ ℙ ∧ 𝑌 ∈ ℙ) ∧ (𝑋 ∈ (1...𝑁) ∧ 𝑌 ∈ (1...𝑁) ∧ 𝑋 ≠ 𝑌)) → if(𝑌 ∈ ℙ, 𝑌, 1) = 𝑌)
54	14, 53	sylan9eqr 2788	. . . . . 6 ⊢ ((((¬ 𝑋 ∈ ℙ ∧ 𝑌 ∈ ℙ) ∧ (𝑋 ∈ (1...𝑁) ∧ 𝑌 ∈ (1...𝑁) ∧ 𝑋 ≠ 𝑌)) ∧ 𝑚 = 𝑌) → if(𝑚 ∈ ℙ, 𝑚, 1) = 𝑌)
55	19	adantl 481	. . . . . 6 ⊢ (((¬ 𝑋 ∈ ℙ ∧ 𝑌 ∈ ℙ) ∧ (𝑋 ∈ (1...𝑁) ∧ 𝑌 ∈ (1...𝑁) ∧ 𝑋 ≠ 𝑌)) → 𝑌 ∈ ℕ)
56	1, 54, 55, 55	fvmptd2 6937	. . . . 5 ⊢ (((¬ 𝑋 ∈ ℙ ∧ 𝑌 ∈ ℙ) ∧ (𝑋 ∈ (1...𝑁) ∧ 𝑌 ∈ (1...𝑁) ∧ 𝑋 ≠ 𝑌)) → (𝐹‘𝑌) = 𝑌)
57	52, 56	oveq12d 7364	. . . 4 ⊢ (((¬ 𝑋 ∈ ℙ ∧ 𝑌 ∈ ℙ) ∧ (𝑋 ∈ (1...𝑁) ∧ 𝑌 ∈ (1...𝑁) ∧ 𝑋 ≠ 𝑌)) → ((𝐹‘𝑋) gcd (𝐹‘𝑌)) = (1 gcd 𝑌))
58		prmz 16586	. . . . . 6 ⊢ (𝑌 ∈ ℙ → 𝑌 ∈ ℤ)
59		1gcd 16444	. . . . . 6 ⊢ (𝑌 ∈ ℤ → (1 gcd 𝑌) = 1)
60	58, 59	syl 17	. . . . 5 ⊢ (𝑌 ∈ ℙ → (1 gcd 𝑌) = 1)
61	60	ad2antlr 727	. . . 4 ⊢ (((¬ 𝑋 ∈ ℙ ∧ 𝑌 ∈ ℙ) ∧ (𝑋 ∈ (1...𝑁) ∧ 𝑌 ∈ (1...𝑁) ∧ 𝑋 ≠ 𝑌)) → (1 gcd 𝑌) = 1)
62	57, 61	eqtrd 2766	. . 3 ⊢ (((¬ 𝑋 ∈ ℙ ∧ 𝑌 ∈ ℙ) ∧ (𝑋 ∈ (1...𝑁) ∧ 𝑌 ∈ (1...𝑁) ∧ 𝑋 ≠ 𝑌)) → ((𝐹‘𝑋) gcd (𝐹‘𝑌)) = 1)
63	62	ex 412	. 2 ⊢ ((¬ 𝑋 ∈ ℙ ∧ 𝑌 ∈ ℙ) → ((𝑋 ∈ (1...𝑁) ∧ 𝑌 ∈ (1...𝑁) ∧ 𝑋 ≠ 𝑌) → ((𝐹‘𝑋) gcd (𝐹‘𝑌)) = 1))
64	47	ad2antrr 726	. . . . . . 7 ⊢ (((¬ 𝑋 ∈ ℙ ∧ ¬ 𝑌 ∈ ℙ) ∧ (𝑋 ∈ (1...𝑁) ∧ 𝑌 ∈ (1...𝑁) ∧ 𝑋 ≠ 𝑌)) → if(𝑋 ∈ ℙ, 𝑋, 1) = 1)
65	4, 64	sylan9eqr 2788	. . . . . 6 ⊢ ((((¬ 𝑋 ∈ ℙ ∧ ¬ 𝑌 ∈ ℙ) ∧ (𝑋 ∈ (1...𝑁) ∧ 𝑌 ∈ (1...𝑁) ∧ 𝑋 ≠ 𝑌)) ∧ 𝑚 = 𝑋) → if(𝑚 ∈ ℙ, 𝑚, 1) = 1)
66	9	adantl 481	. . . . . 6 ⊢ (((¬ 𝑋 ∈ ℙ ∧ ¬ 𝑌 ∈ ℙ) ∧ (𝑋 ∈ (1...𝑁) ∧ 𝑌 ∈ (1...𝑁) ∧ 𝑋 ≠ 𝑌)) → 𝑋 ∈ ℕ)
67	37	a1i 11	. . . . . 6 ⊢ (((¬ 𝑋 ∈ ℙ ∧ ¬ 𝑌 ∈ ℙ) ∧ (𝑋 ∈ (1...𝑁) ∧ 𝑌 ∈ (1...𝑁) ∧ 𝑋 ≠ 𝑌)) → 1 ∈ ℕ)
68	1, 65, 66, 67	fvmptd2 6937	. . . . 5 ⊢ (((¬ 𝑋 ∈ ℙ ∧ ¬ 𝑌 ∈ ℙ) ∧ (𝑋 ∈ (1...𝑁) ∧ 𝑌 ∈ (1...𝑁) ∧ 𝑋 ≠ 𝑌)) → (𝐹‘𝑋) = 1)
69	33	ad2antlr 727	. . . . . . 7 ⊢ (((¬ 𝑋 ∈ ℙ ∧ ¬ 𝑌 ∈ ℙ) ∧ (𝑋 ∈ (1...𝑁) ∧ 𝑌 ∈ (1...𝑁) ∧ 𝑋 ≠ 𝑌)) → if(𝑌 ∈ ℙ, 𝑌, 1) = 1)
70	14, 69	sylan9eqr 2788	. . . . . 6 ⊢ ((((¬ 𝑋 ∈ ℙ ∧ ¬ 𝑌 ∈ ℙ) ∧ (𝑋 ∈ (1...𝑁) ∧ 𝑌 ∈ (1...𝑁) ∧ 𝑋 ≠ 𝑌)) ∧ 𝑚 = 𝑌) → if(𝑚 ∈ ℙ, 𝑚, 1) = 1)
71	19	adantl 481	. . . . . 6 ⊢ (((¬ 𝑋 ∈ ℙ ∧ ¬ 𝑌 ∈ ℙ) ∧ (𝑋 ∈ (1...𝑁) ∧ 𝑌 ∈ (1...𝑁) ∧ 𝑋 ≠ 𝑌)) → 𝑌 ∈ ℕ)
72	1, 70, 71, 67	fvmptd2 6937	. . . . 5 ⊢ (((¬ 𝑋 ∈ ℙ ∧ ¬ 𝑌 ∈ ℙ) ∧ (𝑋 ∈ (1...𝑁) ∧ 𝑌 ∈ (1...𝑁) ∧ 𝑋 ≠ 𝑌)) → (𝐹‘𝑌) = 1)
73	68, 72	oveq12d 7364	. . . 4 ⊢ (((¬ 𝑋 ∈ ℙ ∧ ¬ 𝑌 ∈ ℙ) ∧ (𝑋 ∈ (1...𝑁) ∧ 𝑌 ∈ (1...𝑁) ∧ 𝑋 ≠ 𝑌)) → ((𝐹‘𝑋) gcd (𝐹‘𝑌)) = (1 gcd 1))
74		1z 12502	. . . . 5 ⊢ 1 ∈ ℤ
75		1gcd 16444	. . . . 5 ⊢ (1 ∈ ℤ → (1 gcd 1) = 1)
76	74, 75	mp1i 13	. . . 4 ⊢ (((¬ 𝑋 ∈ ℙ ∧ ¬ 𝑌 ∈ ℙ) ∧ (𝑋 ∈ (1...𝑁) ∧ 𝑌 ∈ (1...𝑁) ∧ 𝑋 ≠ 𝑌)) → (1 gcd 1) = 1)
77	73, 76	eqtrd 2766	. . 3 ⊢ (((¬ 𝑋 ∈ ℙ ∧ ¬ 𝑌 ∈ ℙ) ∧ (𝑋 ∈ (1...𝑁) ∧ 𝑌 ∈ (1...𝑁) ∧ 𝑋 ≠ 𝑌)) → ((𝐹‘𝑋) gcd (𝐹‘𝑌)) = 1)
78	77	ex 412	. 2 ⊢ ((¬ 𝑋 ∈ ℙ ∧ ¬ 𝑌 ∈ ℙ) → ((𝑋 ∈ (1...𝑁) ∧ 𝑌 ∈ (1...𝑁) ∧ 𝑋 ≠ 𝑌) → ((𝐹‘𝑋) gcd (𝐹‘𝑌)) = 1))
79	28, 46, 63, 78	4cases 1040	1 ⊢ ((𝑋 ∈ (1...𝑁) ∧ 𝑌 ∈ (1...𝑁) ∧ 𝑋 ≠ 𝑌) → ((𝐹‘𝑋) gcd (𝐹‘𝑌)) = 1)

Colors of variables: wff setvar class

Syntax hints: ¬ wn 3 → wi 4 ∧ wa 395 ∧ w3a 1086 = wceq 1541 ∈ wcel 2111 ≠ wne 2928 ifcif 4475 ↦ cmpt 5172 ‘cfv 6481 (class class class)co 7346 1c1 11007 ℕcn 12125 ℤcz 12468 ...cfz 13407 gcd cgcd 16405 ℙcprime 16582

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2113 ax-9 2121 ax-10 2144 ax-11 2160 ax-12 2180 ax-ext 2703 ax-sep 5234 ax-nul 5244 ax-pow 5303 ax-pr 5370 ax-un 7668 ax-cnex 11062 ax-resscn 11063 ax-1cn 11064 ax-icn 11065 ax-addcl 11066 ax-addrcl 11067 ax-mulcl 11068 ax-mulrcl 11069 ax-mulcom 11070 ax-addass 11071 ax-mulass 11072 ax-distr 11073 ax-i2m1 11074 ax-1ne0 11075 ax-1rid 11076 ax-rnegex 11077 ax-rrecex 11078 ax-cnre 11079 ax-pre-lttri 11080 ax-pre-lttrn 11081 ax-pre-ltadd 11082 ax-pre-mulgt0 11083 ax-pre-sup 11084

This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-nf 1785 df-sb 2068 df-mo 2535 df-eu 2564 df-clab 2710 df-cleq 2723 df-clel 2806 df-nfc 2881 df-ne 2929 df-nel 3033 df-ral 3048 df-rex 3057 df-rmo 3346 df-reu 3347 df-rab 3396 df-v 3438 df-sbc 3742 df-csb 3851 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-pss 3922 df-nul 4284 df-if 4476 df-pw 4552 df-sn 4577 df-pr 4579 df-op 4583 df-uni 4860 df-iun 4943 df-br 5092 df-opab 5154 df-mpt 5173 df-tr 5199 df-id 5511 df-eprel 5516 df-po 5524 df-so 5525 df-fr 5569 df-we 5571 df-xp 5622 df-rel 5623 df-cnv 5624 df-co 5625 df-dm 5626 df-rn 5627 df-res 5628 df-ima 5629 df-pred 6248 df-ord 6309 df-on 6310 df-lim 6311 df-suc 6312 df-iota 6437 df-fun 6483 df-fn 6484 df-f 6485 df-f1 6486 df-fo 6487 df-f1o 6488 df-fv 6489 df-riota 7303 df-ov 7349 df-oprab 7350 df-mpo 7351 df-om 7797 df-1st 7921 df-2nd 7922 df-frecs 8211 df-wrecs 8242 df-recs 8291 df-rdg 8329 df-1o 8385 df-2o 8386 df-er 8622 df-en 8870 df-dom 8871 df-sdom 8872 df-fin 8873 df-sup 9326 df-inf 9327 df-pnf 11148 df-mnf 11149 df-xr 11150 df-ltxr 11151 df-le 11152 df-sub 11346 df-neg 11347 df-div 11775 df-nn 12126 df-2 12188 df-3 12189 df-n0 12382 df-z 12469 df-uz 12733 df-rp 12891 df-fz 13408 df-seq 13909 df-exp 13969 df-cj 15006 df-re 15007 df-im 15008 df-sqrt 15142 df-abs 15143 df-dvds 16164 df-gcd 16406 df-prm 16583

This theorem is referenced by: prmodvdslcmf 16959

W3C validator