2sqreunnltlem - Metamath Proof Explorer

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Theorem 2sqreunnltlem 27361

Description: Lemma for 2sqreunnlt 27371. (Contributed by AV, 4-Jun-2023.) Specialization to different integers, proposed by GL. (Revised by AV, 11-Jun-2023.)

**Assertion**
Ref	Expression
2sqreunnltlem	⊢ ((𝑃 ∈ ℙ ∧ (𝑃 mod 4) = 1) → ∃!𝑎 ∈ ℕ ∃!𝑏 ∈ ℕ (𝑎 < 𝑏 ∧ ((𝑎↑2) + (𝑏↑2)) = 𝑃))

Distinct variable group: 𝑃,𝑎,𝑏

**Proof of Theorem 2sqreunnltlem**
Step	Hyp	Ref	Expression
1		2sqreunnlem1 27360	. 2 ⊢ ((𝑃 ∈ ℙ ∧ (𝑃 mod 4) = 1) → ∃!𝑎 ∈ ℕ ∃!𝑏 ∈ ℕ (𝑎 ≤ 𝑏 ∧ ((𝑎↑2) + (𝑏↑2)) = 𝑃))
2		oveq1 7394	. . . . . . . . . . . . . . 15 ⊢ (𝑏 = 𝑎 → (𝑏↑2) = (𝑎↑2))
3	2	oveq2d 7403	. . . . . . . . . . . . . 14 ⊢ (𝑏 = 𝑎 → ((𝑎↑2) + (𝑏↑2)) = ((𝑎↑2) + (𝑎↑2)))
4	3	adantr 480	. . . . . . . . . . . . 13 ⊢ ((𝑏 = 𝑎 ∧ (((𝑃 ∈ ℙ ∧ (𝑃 mod 4) = 1) ∧ 𝑎 ∈ ℕ) ∧ 𝑏 ∈ ℕ)) → ((𝑎↑2) + (𝑏↑2)) = ((𝑎↑2) + (𝑎↑2)))
5		nncn 12194	. . . . . . . . . . . . . . . . 17 ⊢ (𝑎 ∈ ℕ → 𝑎 ∈ ℂ)
6	5	sqcld 14109	. . . . . . . . . . . . . . . 16 ⊢ (𝑎 ∈ ℕ → (𝑎↑2) ∈ ℂ)
7		2times 12317	. . . . . . . . . . . . . . . . 17 ⊢ ((𝑎↑2) ∈ ℂ → (2 · (𝑎↑2)) = ((𝑎↑2) + (𝑎↑2)))
8	7	eqcomd 2735	. . . . . . . . . . . . . . . 16 ⊢ ((𝑎↑2) ∈ ℂ → ((𝑎↑2) + (𝑎↑2)) = (2 · (𝑎↑2)))
9	6, 8	syl 17	. . . . . . . . . . . . . . 15 ⊢ (𝑎 ∈ ℕ → ((𝑎↑2) + (𝑎↑2)) = (2 · (𝑎↑2)))
10	9	adantl 481	. . . . . . . . . . . . . 14 ⊢ (((𝑃 ∈ ℙ ∧ (𝑃 mod 4) = 1) ∧ 𝑎 ∈ ℕ) → ((𝑎↑2) + (𝑎↑2)) = (2 · (𝑎↑2)))
11	10	ad2antrl 728	. . . . . . . . . . . . 13 ⊢ ((𝑏 = 𝑎 ∧ (((𝑃 ∈ ℙ ∧ (𝑃 mod 4) = 1) ∧ 𝑎 ∈ ℕ) ∧ 𝑏 ∈ ℕ)) → ((𝑎↑2) + (𝑎↑2)) = (2 · (𝑎↑2)))
12	4, 11	eqtrd 2764	. . . . . . . . . . . 12 ⊢ ((𝑏 = 𝑎 ∧ (((𝑃 ∈ ℙ ∧ (𝑃 mod 4) = 1) ∧ 𝑎 ∈ ℕ) ∧ 𝑏 ∈ ℕ)) → ((𝑎↑2) + (𝑏↑2)) = (2 · (𝑎↑2)))
13	12	eqeq1d 2731	. . . . . . . . . . 11 ⊢ ((𝑏 = 𝑎 ∧ (((𝑃 ∈ ℙ ∧ (𝑃 mod 4) = 1) ∧ 𝑎 ∈ ℕ) ∧ 𝑏 ∈ ℕ)) → (((𝑎↑2) + (𝑏↑2)) = 𝑃 ↔ (2 · (𝑎↑2)) = 𝑃))
14		oveq1 7394	. . . . . . . . . . . . . . . . . . . 20 ⊢ (𝑃 = (2 · (𝑎↑2)) → (𝑃 mod 4) = ((2 · (𝑎↑2)) mod 4))
15	14	eqeq1d 2731	. . . . . . . . . . . . . . . . . . 19 ⊢ (𝑃 = (2 · (𝑎↑2)) → ((𝑃 mod 4) = 1 ↔ ((2 · (𝑎↑2)) mod 4) = 1))
16		eleq1 2816	. . . . . . . . . . . . . . . . . . 19 ⊢ (𝑃 = (2 · (𝑎↑2)) → (𝑃 ∈ ℙ ↔ (2 · (𝑎↑2)) ∈ ℙ))
17	15, 16	anbi12d 632	. . . . . . . . . . . . . . . . . 18 ⊢ (𝑃 = (2 · (𝑎↑2)) → (((𝑃 mod 4) = 1 ∧ 𝑃 ∈ ℙ) ↔ (((2 · (𝑎↑2)) mod 4) = 1 ∧ (2 · (𝑎↑2)) ∈ ℙ)))
18		nnz 12550	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (𝑎 ∈ ℕ → 𝑎 ∈ ℤ)
19		2nn0 12459	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ 2 ∈ ℕ₀
20		zexpcl 14041	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((𝑎 ∈ ℤ ∧ 2 ∈ ℕ₀) → (𝑎↑2) ∈ ℤ)
21	18, 19, 20	sylancl 586	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (𝑎 ∈ ℕ → (𝑎↑2) ∈ ℤ)
22		2mulprm 16663	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((𝑎↑2) ∈ ℤ → ((2 · (𝑎↑2)) ∈ ℙ ↔ (𝑎↑2) = 1))
23	21, 22	syl 17	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (𝑎 ∈ ℕ → ((2 · (𝑎↑2)) ∈ ℙ ↔ (𝑎↑2) = 1))
24		oveq2 7395	. . . . . . . . . . . . . . . . . . . . . . . . . 26 ⊢ ((𝑎↑2) = 1 → (2 · (𝑎↑2)) = (2 · 1))
25		2t1e2 12344	. . . . . . . . . . . . . . . . . . . . . . . . . 26 ⊢ (2 · 1) = 2
26	24, 25	eqtrdi 2780	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ ((𝑎↑2) = 1 → (2 · (𝑎↑2)) = 2)
27	26	oveq1d 7402	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((𝑎↑2) = 1 → ((2 · (𝑎↑2)) mod 4) = (2 mod 4))
28		2re 12260	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ 2 ∈ ℝ
29		4nn 12269	. . . . . . . . . . . . . . . . . . . . . . . . . 26 ⊢ 4 ∈ ℕ
30		nnrp 12963	. . . . . . . . . . . . . . . . . . . . . . . . . 26 ⊢ (4 ∈ ℕ → 4 ∈ ℝ⁺)
31	29, 30	ax-mp 5	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ 4 ∈ ℝ⁺
32		0le2 12288	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ 0 ≤ 2
33		2lt4 12356	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ 2 < 4
34		modid 13858	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ (((2 ∈ ℝ ∧ 4 ∈ ℝ⁺) ∧ (0 ≤ 2 ∧ 2 < 4)) → (2 mod 4) = 2)
35	28, 31, 32, 33, 34	mp4an 693	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ (2 mod 4) = 2
36	27, 35	eqtrdi 2780	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((𝑎↑2) = 1 → ((2 · (𝑎↑2)) mod 4) = 2)
37	36	eqeq1d 2731	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((𝑎↑2) = 1 → (((2 · (𝑎↑2)) mod 4) = 1 ↔ 2 = 1))
38		1ne2 12389	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ 1 ≠ 2
39		eqcom 2736	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ (2 = 1 ↔ 1 = 2)
40		eqneqall 2936	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ (1 = 2 → (1 ≠ 2 → (𝑎 ≤ 𝑏 → 𝑏 ≠ 𝑎)))
41	40	com12 32	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ (1 ≠ 2 → (1 = 2 → (𝑎 ≤ 𝑏 → 𝑏 ≠ 𝑎)))
42	39, 41	biimtrid 242	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (1 ≠ 2 → (2 = 1 → (𝑎 ≤ 𝑏 → 𝑏 ≠ 𝑎)))
43	38, 42	ax-mp 5	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (2 = 1 → (𝑎 ≤ 𝑏 → 𝑏 ≠ 𝑎))
44	37, 43	biimtrdi 253	. . . . . . . . . . . . . . . . . . . . 21 ⊢ ((𝑎↑2) = 1 → (((2 · (𝑎↑2)) mod 4) = 1 → (𝑎 ≤ 𝑏 → 𝑏 ≠ 𝑎)))
45	23, 44	biimtrdi 253	. . . . . . . . . . . . . . . . . . . 20 ⊢ (𝑎 ∈ ℕ → ((2 · (𝑎↑2)) ∈ ℙ → (((2 · (𝑎↑2)) mod 4) = 1 → (𝑎 ≤ 𝑏 → 𝑏 ≠ 𝑎))))
46	45	impcomd 411	. . . . . . . . . . . . . . . . . . 19 ⊢ (𝑎 ∈ ℕ → ((((2 · (𝑎↑2)) mod 4) = 1 ∧ (2 · (𝑎↑2)) ∈ ℙ) → (𝑎 ≤ 𝑏 → 𝑏 ≠ 𝑎)))
47	46	com12 32	. . . . . . . . . . . . . . . . . 18 ⊢ ((((2 · (𝑎↑2)) mod 4) = 1 ∧ (2 · (𝑎↑2)) ∈ ℙ) → (𝑎 ∈ ℕ → (𝑎 ≤ 𝑏 → 𝑏 ≠ 𝑎)))
48	17, 47	biimtrdi 253	. . . . . . . . . . . . . . . . 17 ⊢ (𝑃 = (2 · (𝑎↑2)) → (((𝑃 mod 4) = 1 ∧ 𝑃 ∈ ℙ) → (𝑎 ∈ ℕ → (𝑎 ≤ 𝑏 → 𝑏 ≠ 𝑎))))
49	48	expd 415	. . . . . . . . . . . . . . . 16 ⊢ (𝑃 = (2 · (𝑎↑2)) → ((𝑃 mod 4) = 1 → (𝑃 ∈ ℙ → (𝑎 ∈ ℕ → (𝑎 ≤ 𝑏 → 𝑏 ≠ 𝑎)))))
50	49	com34 91	. . . . . . . . . . . . . . 15 ⊢ (𝑃 = (2 · (𝑎↑2)) → ((𝑃 mod 4) = 1 → (𝑎 ∈ ℕ → (𝑃 ∈ ℙ → (𝑎 ≤ 𝑏 → 𝑏 ≠ 𝑎)))))
51	50	eqcoms 2737	. . . . . . . . . . . . . 14 ⊢ ((2 · (𝑎↑2)) = 𝑃 → ((𝑃 mod 4) = 1 → (𝑎 ∈ ℕ → (𝑃 ∈ ℙ → (𝑎 ≤ 𝑏 → 𝑏 ≠ 𝑎)))))
52	51	com14 96	. . . . . . . . . . . . 13 ⊢ (𝑃 ∈ ℙ → ((𝑃 mod 4) = 1 → (𝑎 ∈ ℕ → ((2 · (𝑎↑2)) = 𝑃 → (𝑎 ≤ 𝑏 → 𝑏 ≠ 𝑎)))))
53	52	imp31 417	. . . . . . . . . . . 12 ⊢ (((𝑃 ∈ ℙ ∧ (𝑃 mod 4) = 1) ∧ 𝑎 ∈ ℕ) → ((2 · (𝑎↑2)) = 𝑃 → (𝑎 ≤ 𝑏 → 𝑏 ≠ 𝑎)))
54	53	ad2antrl 728	. . . . . . . . . . 11 ⊢ ((𝑏 = 𝑎 ∧ (((𝑃 ∈ ℙ ∧ (𝑃 mod 4) = 1) ∧ 𝑎 ∈ ℕ) ∧ 𝑏 ∈ ℕ)) → ((2 · (𝑎↑2)) = 𝑃 → (𝑎 ≤ 𝑏 → 𝑏 ≠ 𝑎)))
55	13, 54	sylbid 240	. . . . . . . . . 10 ⊢ ((𝑏 = 𝑎 ∧ (((𝑃 ∈ ℙ ∧ (𝑃 mod 4) = 1) ∧ 𝑎 ∈ ℕ) ∧ 𝑏 ∈ ℕ)) → (((𝑎↑2) + (𝑏↑2)) = 𝑃 → (𝑎 ≤ 𝑏 → 𝑏 ≠ 𝑎)))
56	55	expimpd 453	. . . . . . . . 9 ⊢ (𝑏 = 𝑎 → (((((𝑃 ∈ ℙ ∧ (𝑃 mod 4) = 1) ∧ 𝑎 ∈ ℕ) ∧ 𝑏 ∈ ℕ) ∧ ((𝑎↑2) + (𝑏↑2)) = 𝑃) → (𝑎 ≤ 𝑏 → 𝑏 ≠ 𝑎)))
57		2a1 28	. . . . . . . . 9 ⊢ (𝑏 ≠ 𝑎 → (((((𝑃 ∈ ℙ ∧ (𝑃 mod 4) = 1) ∧ 𝑎 ∈ ℕ) ∧ 𝑏 ∈ ℕ) ∧ ((𝑎↑2) + (𝑏↑2)) = 𝑃) → (𝑎 ≤ 𝑏 → 𝑏 ≠ 𝑎)))
58	56, 57	pm2.61ine 3008	. . . . . . . 8 ⊢ (((((𝑃 ∈ ℙ ∧ (𝑃 mod 4) = 1) ∧ 𝑎 ∈ ℕ) ∧ 𝑏 ∈ ℕ) ∧ ((𝑎↑2) + (𝑏↑2)) = 𝑃) → (𝑎 ≤ 𝑏 → 𝑏 ≠ 𝑎))
59	58	pm4.71d 561	. . . . . . 7 ⊢ (((((𝑃 ∈ ℙ ∧ (𝑃 mod 4) = 1) ∧ 𝑎 ∈ ℕ) ∧ 𝑏 ∈ ℕ) ∧ ((𝑎↑2) + (𝑏↑2)) = 𝑃) → (𝑎 ≤ 𝑏 ↔ (𝑎 ≤ 𝑏 ∧ 𝑏 ≠ 𝑎)))
60		nnre 12193	. . . . . . . . . . 11 ⊢ (𝑎 ∈ ℕ → 𝑎 ∈ ℝ)
61	60	adantl 481	. . . . . . . . . 10 ⊢ (((𝑃 ∈ ℙ ∧ (𝑃 mod 4) = 1) ∧ 𝑎 ∈ ℕ) → 𝑎 ∈ ℝ)
62		nnre 12193	. . . . . . . . . 10 ⊢ (𝑏 ∈ ℕ → 𝑏 ∈ ℝ)
63		ltlen 11275	. . . . . . . . . 10 ⊢ ((𝑎 ∈ ℝ ∧ 𝑏 ∈ ℝ) → (𝑎 < 𝑏 ↔ (𝑎 ≤ 𝑏 ∧ 𝑏 ≠ 𝑎)))
64	61, 62, 63	syl2an 596	. . . . . . . . 9 ⊢ ((((𝑃 ∈ ℙ ∧ (𝑃 mod 4) = 1) ∧ 𝑎 ∈ ℕ) ∧ 𝑏 ∈ ℕ) → (𝑎 < 𝑏 ↔ (𝑎 ≤ 𝑏 ∧ 𝑏 ≠ 𝑎)))
65	64	bibi2d 342	. . . . . . . 8 ⊢ ((((𝑃 ∈ ℙ ∧ (𝑃 mod 4) = 1) ∧ 𝑎 ∈ ℕ) ∧ 𝑏 ∈ ℕ) → ((𝑎 ≤ 𝑏 ↔ 𝑎 < 𝑏) ↔ (𝑎 ≤ 𝑏 ↔ (𝑎 ≤ 𝑏 ∧ 𝑏 ≠ 𝑎))))
66	65	adantr 480	. . . . . . 7 ⊢ (((((𝑃 ∈ ℙ ∧ (𝑃 mod 4) = 1) ∧ 𝑎 ∈ ℕ) ∧ 𝑏 ∈ ℕ) ∧ ((𝑎↑2) + (𝑏↑2)) = 𝑃) → ((𝑎 ≤ 𝑏 ↔ 𝑎 < 𝑏) ↔ (𝑎 ≤ 𝑏 ↔ (𝑎 ≤ 𝑏 ∧ 𝑏 ≠ 𝑎))))
67	59, 66	mpbird 257	. . . . . 6 ⊢ (((((𝑃 ∈ ℙ ∧ (𝑃 mod 4) = 1) ∧ 𝑎 ∈ ℕ) ∧ 𝑏 ∈ ℕ) ∧ ((𝑎↑2) + (𝑏↑2)) = 𝑃) → (𝑎 ≤ 𝑏 ↔ 𝑎 < 𝑏))
68	67	ex 412	. . . . 5 ⊢ ((((𝑃 ∈ ℙ ∧ (𝑃 mod 4) = 1) ∧ 𝑎 ∈ ℕ) ∧ 𝑏 ∈ ℕ) → (((𝑎↑2) + (𝑏↑2)) = 𝑃 → (𝑎 ≤ 𝑏 ↔ 𝑎 < 𝑏)))
69	68	pm5.32rd 578	. . . 4 ⊢ ((((𝑃 ∈ ℙ ∧ (𝑃 mod 4) = 1) ∧ 𝑎 ∈ ℕ) ∧ 𝑏 ∈ ℕ) → ((𝑎 ≤ 𝑏 ∧ ((𝑎↑2) + (𝑏↑2)) = 𝑃) ↔ (𝑎 < 𝑏 ∧ ((𝑎↑2) + (𝑏↑2)) = 𝑃)))
70	69	reubidva 3370	. . 3 ⊢ (((𝑃 ∈ ℙ ∧ (𝑃 mod 4) = 1) ∧ 𝑎 ∈ ℕ) → (∃!𝑏 ∈ ℕ (𝑎 ≤ 𝑏 ∧ ((𝑎↑2) + (𝑏↑2)) = 𝑃) ↔ ∃!𝑏 ∈ ℕ (𝑎 < 𝑏 ∧ ((𝑎↑2) + (𝑏↑2)) = 𝑃)))
71	70	reubidva 3370	. 2 ⊢ ((𝑃 ∈ ℙ ∧ (𝑃 mod 4) = 1) → (∃!𝑎 ∈ ℕ ∃!𝑏 ∈ ℕ (𝑎 ≤ 𝑏 ∧ ((𝑎↑2) + (𝑏↑2)) = 𝑃) ↔ ∃!𝑎 ∈ ℕ ∃!𝑏 ∈ ℕ (𝑎 < 𝑏 ∧ ((𝑎↑2) + (𝑏↑2)) = 𝑃)))
72	1, 71	mpbid 232	1 ⊢ ((𝑃 ∈ ℙ ∧ (𝑃 mod 4) = 1) → ∃!𝑎 ∈ ℕ ∃!𝑏 ∈ ℕ (𝑎 < 𝑏 ∧ ((𝑎↑2) + (𝑏↑2)) = 𝑃))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ↔ wb 206 ∧ wa 395 = wceq 1540 ∈ wcel 2109 ≠ wne 2925 ∃!wreu 3352 class class class wbr 5107 (class class class)co 7387 ℂcc 11066 ℝcr 11067 0cc0 11068 1c1 11069 + caddc 11071 · cmul 11073 < clt 11208 ≤ cle 11209 ℕcn 12186 2c2 12241 4c4 12243 ℕ₀cn0 12442 ℤcz 12529 ℝ⁺crp 12951 mod cmo 13831 ↑cexp 14026 ℙcprime 16641

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 1967 ax-7 2008 ax-8 2111 ax-9 2119 ax-10 2142 ax-11 2158 ax-12 2178 ax-ext 2701 ax-rep 5234 ax-sep 5251 ax-nul 5261 ax-pow 5320 ax-pr 5387 ax-un 7711 ax-cnex 11124 ax-resscn 11125 ax-1cn 11126 ax-icn 11127 ax-addcl 11128 ax-addrcl 11129 ax-mulcl 11130 ax-mulrcl 11131 ax-mulcom 11132 ax-addass 11133 ax-mulass 11134 ax-distr 11135 ax-i2m1 11136 ax-1ne0 11137 ax-1rid 11138 ax-rnegex 11139 ax-rrecex 11140 ax-cnre 11141 ax-pre-lttri 11142 ax-pre-lttrn 11143 ax-pre-ltadd 11144 ax-pre-mulgt0 11145 ax-pre-sup 11146 ax-addf 11147 ax-mulf 11148

This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1780 df-nf 1784 df-sb 2066 df-mo 2533 df-eu 2562 df-clab 2708 df-cleq 2721 df-clel 2803 df-nfc 2878 df-ne 2926 df-nel 3030 df-ral 3045 df-rex 3054 df-rmo 3354 df-reu 3355 df-rab 3406 df-v 3449 df-sbc 3754 df-csb 3863 df-dif 3917 df-un 3919 df-in 3921 df-ss 3931 df-pss 3934 df-nul 4297 df-if 4489 df-pw 4565 df-sn 4590 df-pr 4592 df-tp 4594 df-op 4596 df-uni 4872 df-int 4911 df-iun 4957 df-iin 4958 df-br 5108 df-opab 5170 df-mpt 5189 df-tr 5215 df-id 5533 df-eprel 5538 df-po 5546 df-so 5547 df-fr 5591 df-se 5592 df-we 5593 df-xp 5644 df-rel 5645 df-cnv 5646 df-co 5647 df-dm 5648 df-rn 5649 df-res 5650 df-ima 5651 df-pred 6274 df-ord 6335 df-on 6336 df-lim 6337 df-suc 6338 df-iota 6464 df-fun 6513 df-fn 6514 df-f 6515 df-f1 6516 df-fo 6517 df-f1o 6518 df-fv 6519 df-isom 6520 df-riota 7344 df-ov 7390 df-oprab 7391 df-mpo 7392 df-of 7653 df-ofr 7654 df-om 7843 df-1st 7968 df-2nd 7969 df-supp 8140 df-tpos 8205 df-frecs 8260 df-wrecs 8291 df-recs 8340 df-rdg 8378 df-1o 8434 df-2o 8435 df-oadd 8438 df-er 8671 df-ec 8673 df-qs 8677 df-map 8801 df-pm 8802 df-ixp 8871 df-en 8919 df-dom 8920 df-sdom 8921 df-fin 8922 df-fsupp 9313 df-sup 9393 df-inf 9394 df-oi 9463 df-dju 9854 df-card 9892 df-pnf 11210 df-mnf 11211 df-xr 11212 df-ltxr 11213 df-le 11214 df-sub 11407 df-neg 11408 df-div 11836 df-nn 12187 df-2 12249 df-3 12250 df-4 12251 df-5 12252 df-6 12253 df-7 12254 df-8 12255 df-9 12256 df-n0 12443 df-xnn0 12516 df-z 12530 df-dec 12650 df-uz 12794 df-q 12908 df-rp 12952 df-fz 13469 df-fzo 13616 df-fl 13754 df-mod 13832 df-seq 13967 df-exp 14027 df-hash 14296 df-cj 15065 df-re 15066 df-im 15067 df-sqrt 15201 df-abs 15202 df-dvds 16223 df-gcd 16465 df-prm 16642 df-phi 16736 df-pc 16808 df-gz 16901 df-struct 17117 df-sets 17134 df-slot 17152 df-ndx 17164 df-base 17180 df-ress 17201 df-plusg 17233 df-mulr 17234 df-starv 17235 df-sca 17236 df-vsca 17237 df-ip 17238 df-tset 17239 df-ple 17240 df-ds 17242 df-unif 17243 df-hom 17244 df-cco 17245 df-0g 17404 df-gsum 17405 df-prds 17410 df-pws 17412 df-imas 17471 df-qus 17472 df-mre 17547 df-mrc 17548 df-acs 17550 df-mgm 18567 df-sgrp 18646 df-mnd 18662 df-mhm 18710 df-submnd 18711 df-grp 18868 df-minusg 18869 df-sbg 18870 df-mulg 19000 df-subg 19055 df-nsg 19056 df-eqg 19057 df-ghm 19145 df-cntz 19249 df-cmn 19712 df-abl 19713 df-mgp 20050 df-rng 20062 df-ur 20091 df-srg 20096 df-ring 20144 df-cring 20145 df-oppr 20246 df-dvdsr 20266 df-unit 20267 df-invr 20297 df-dvr 20310 df-rhm 20381 df-nzr 20422 df-subrng 20455 df-subrg 20479 df-rlreg 20603 df-domn 20604 df-idom 20605 df-drng 20640 df-field 20641 df-lmod 20768 df-lss 20838 df-lsp 20878 df-sra 21080 df-rgmod 21081 df-lidl 21118 df-rsp 21119 df-2idl 21160 df-cnfld 21265 df-zring 21357 df-zrh 21413 df-zn 21416 df-assa 21762 df-asp 21763 df-ascl 21764 df-psr 21818 df-mvr 21819 df-mpl 21820 df-opsr 21822 df-evls 21981 df-evl 21982 df-psr1 22064 df-vr1 22065 df-ply1 22066 df-coe1 22067 df-evl1 22203 df-mdeg 25960 df-deg1 25961 df-mon1 26036 df-uc1p 26037 df-q1p 26038 df-r1p 26039 df-lgs 27206

This theorem is referenced by: 2sqreunnltblem 27362 2sqreunnlt 27371

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