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Theorem elntg2 26291

Description: The line definition in the Tarski structure for the Euclidean geometry. In contrast to elntg 26290, the betweenness can be strengthened by excluding 1 resp. 0 from the related intervals (because of 𝑥 ≠ 𝑦). (Contributed by AV, 14-Feb-2023.)

**Hypotheses**
Ref	Expression
elntg2.1	⊢ 𝑃 = (Base‘(EEG‘𝑁))
elntg2.2	⊢ 𝐼 = (1...𝑁)

**Assertion**
Ref	Expression
elntg2	⊢ (𝑁 ∈ ℕ → (LineG‘(EEG‘𝑁)) = (𝑥 ∈ 𝑃, 𝑦 ∈ (𝑃 ∖ {𝑥}) ↦ {𝑝 ∈ 𝑃 ∣ (∃𝑘 ∈ (0[,]1)∀𝑖 ∈ 𝐼 (𝑝‘𝑖) = (((1 − 𝑘) · (𝑥‘𝑖)) + (𝑘 · (𝑦‘𝑖))) ∨ ∃𝑙 ∈ (0[,)1)∀𝑖 ∈ 𝐼 (𝑥‘𝑖) = (((1 − 𝑙) · (𝑝‘𝑖)) + (𝑙 · (𝑦‘𝑖))) ∨ ∃𝑚 ∈ (0(,]1)∀𝑖 ∈ 𝐼 (𝑦‘𝑖) = (((1 − 𝑚) · (𝑥‘𝑖)) + (𝑚 · (𝑝‘𝑖))))}))

Distinct variable groups: 𝑖,𝐼 𝑖,𝑁,𝑘,𝑙,𝑚,𝑝,𝑥,𝑦 𝑃,𝑖,𝑝 Allowed substitution hints: 𝑃(𝑥,𝑦,𝑘,𝑚,𝑙) 𝐼(𝑥,𝑦,𝑘,𝑚,𝑝,𝑙)

**Proof of Theorem elntg2**
Step	Hyp	Ref	Expression
1		elntg2.1	. . 3 ⊢ 𝑃 = (Base‘(EEG‘𝑁))
2		eqid 2825	. . 3 ⊢ (Itv‘(EEG‘𝑁)) = (Itv‘(EEG‘𝑁))
3	1, 2	elntg 26290	. 2 ⊢ (𝑁 ∈ ℕ → (LineG‘(EEG‘𝑁)) = (𝑥 ∈ 𝑃, 𝑦 ∈ (𝑃 ∖ {𝑥}) ↦ {𝑝 ∈ 𝑃 ∣ (𝑝 ∈ (𝑥(Itv‘(EEG‘𝑁))𝑦) ∨ 𝑥 ∈ (𝑝(Itv‘(EEG‘𝑁))𝑦) ∨ 𝑦 ∈ (𝑥(Itv‘(EEG‘𝑁))𝑝))}))
4		simpl1 1246	. . . . . . 7 ⊢ (((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝 ∈ 𝑃) → 𝑁 ∈ ℕ)
5		simpl2 1248	. . . . . . 7 ⊢ (((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝 ∈ 𝑃) → 𝑥 ∈ 𝑃)
6		eldifi 3961	. . . . . . . . 9 ⊢ (𝑦 ∈ (𝑃 ∖ {𝑥}) → 𝑦 ∈ 𝑃)
7	6	3ad2ant3 1169	. . . . . . . 8 ⊢ ((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) → 𝑦 ∈ 𝑃)
8	7	adantr 474	. . . . . . 7 ⊢ (((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝 ∈ 𝑃) → 𝑦 ∈ 𝑃)
9		simpr 479	. . . . . . 7 ⊢ (((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝 ∈ 𝑃) → 𝑝 ∈ 𝑃)
10	4, 1, 2, 5, 8, 9	ebtwntg 26288	. . . . . 6 ⊢ (((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝 ∈ 𝑃) → (𝑝 Btwn ⟨𝑥, 𝑦⟩ ↔ 𝑝 ∈ (𝑥(Itv‘(EEG‘𝑁))𝑦)))
11		eengbas 26287	. . . . . . . . . . . 12 ⊢ (𝑁 ∈ ℕ → (𝔼‘𝑁) = (Base‘(EEG‘𝑁)))
12	11, 1	syl6reqr 2880	. . . . . . . . . . 11 ⊢ (𝑁 ∈ ℕ → 𝑃 = (𝔼‘𝑁))
13	12	3ad2ant1 1167	. . . . . . . . . 10 ⊢ ((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) → 𝑃 = (𝔼‘𝑁))
14	13	eleq2d 2892	. . . . . . . . 9 ⊢ ((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) → (𝑝 ∈ 𝑃 ↔ 𝑝 ∈ (𝔼‘𝑁)))
15	14	biimpa 470	. . . . . . . 8 ⊢ (((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝 ∈ 𝑃) → 𝑝 ∈ (𝔼‘𝑁))
16	12	eleq2d 2892	. . . . . . . . . . 11 ⊢ (𝑁 ∈ ℕ → (𝑥 ∈ 𝑃 ↔ 𝑥 ∈ (𝔼‘𝑁)))
17	16	biimpa 470	. . . . . . . . . 10 ⊢ ((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃) → 𝑥 ∈ (𝔼‘𝑁))
18	17	3adant3 1166	. . . . . . . . 9 ⊢ ((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) → 𝑥 ∈ (𝔼‘𝑁))
19	18	adantr 474	. . . . . . . 8 ⊢ (((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝 ∈ 𝑃) → 𝑥 ∈ (𝔼‘𝑁))
20	12	eleq2d 2892	. . . . . . . . . . . . 13 ⊢ (𝑁 ∈ ℕ → (𝑦 ∈ 𝑃 ↔ 𝑦 ∈ (𝔼‘𝑁)))
21	20	biimpcd 241	. . . . . . . . . . . 12 ⊢ (𝑦 ∈ 𝑃 → (𝑁 ∈ ℕ → 𝑦 ∈ (𝔼‘𝑁)))
22	21, 6	syl11 33	. . . . . . . . . . 11 ⊢ (𝑁 ∈ ℕ → (𝑦 ∈ (𝑃 ∖ {𝑥}) → 𝑦 ∈ (𝔼‘𝑁)))
23	22	a1d 25	. . . . . . . . . 10 ⊢ (𝑁 ∈ ℕ → (𝑥 ∈ 𝑃 → (𝑦 ∈ (𝑃 ∖ {𝑥}) → 𝑦 ∈ (𝔼‘𝑁))))
24	23	3imp 1141	. . . . . . . . 9 ⊢ ((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) → 𝑦 ∈ (𝔼‘𝑁))
25	24	adantr 474	. . . . . . . 8 ⊢ (((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝 ∈ 𝑃) → 𝑦 ∈ (𝔼‘𝑁))
26		brbtwn 26205	. . . . . . . 8 ⊢ ((𝑝 ∈ (𝔼‘𝑁) ∧ 𝑥 ∈ (𝔼‘𝑁) ∧ 𝑦 ∈ (𝔼‘𝑁)) → (𝑝 Btwn ⟨𝑥, 𝑦⟩ ↔ ∃𝑘 ∈ (0[,]1)∀𝑖 ∈ (1...𝑁)(𝑝‘𝑖) = (((1 − 𝑘) · (𝑥‘𝑖)) + (𝑘 · (𝑦‘𝑖)))))
27	15, 19, 25, 26	syl3anc 1494	. . . . . . 7 ⊢ (((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝 ∈ 𝑃) → (𝑝 Btwn ⟨𝑥, 𝑦⟩ ↔ ∃𝑘 ∈ (0[,]1)∀𝑖 ∈ (1...𝑁)(𝑝‘𝑖) = (((1 − 𝑘) · (𝑥‘𝑖)) + (𝑘 · (𝑦‘𝑖)))))
28		elntg2.2	. . . . . . . . 9 ⊢ 𝐼 = (1...𝑁)
29	28	raleqi 3354	. . . . . . . 8 ⊢ (∀𝑖 ∈ 𝐼 (𝑝‘𝑖) = (((1 − 𝑘) · (𝑥‘𝑖)) + (𝑘 · (𝑦‘𝑖))) ↔ ∀𝑖 ∈ (1...𝑁)(𝑝‘𝑖) = (((1 − 𝑘) · (𝑥‘𝑖)) + (𝑘 · (𝑦‘𝑖))))
30	29	rexbii 3251	. . . . . . 7 ⊢ (∃𝑘 ∈ (0[,]1)∀𝑖 ∈ 𝐼 (𝑝‘𝑖) = (((1 − 𝑘) · (𝑥‘𝑖)) + (𝑘 · (𝑦‘𝑖))) ↔ ∃𝑘 ∈ (0[,]1)∀𝑖 ∈ (1...𝑁)(𝑝‘𝑖) = (((1 − 𝑘) · (𝑥‘𝑖)) + (𝑘 · (𝑦‘𝑖))))
31	27, 30	syl6bbr 281	. . . . . 6 ⊢ (((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝 ∈ 𝑃) → (𝑝 Btwn ⟨𝑥, 𝑦⟩ ↔ ∃𝑘 ∈ (0[,]1)∀𝑖 ∈ 𝐼 (𝑝‘𝑖) = (((1 − 𝑘) · (𝑥‘𝑖)) + (𝑘 · (𝑦‘𝑖)))))
32	10, 31	bitr3d 273	. . . . 5 ⊢ (((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝 ∈ 𝑃) → (𝑝 ∈ (𝑥(Itv‘(EEG‘𝑁))𝑦) ↔ ∃𝑘 ∈ (0[,]1)∀𝑖 ∈ 𝐼 (𝑝‘𝑖) = (((1 − 𝑘) · (𝑥‘𝑖)) + (𝑘 · (𝑦‘𝑖)))))
33	4, 1, 2, 9, 8, 5	ebtwntg 26288	. . . . . . 7 ⊢ (((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝 ∈ 𝑃) → (𝑥 Btwn ⟨𝑝, 𝑦⟩ ↔ 𝑥 ∈ (𝑝(Itv‘(EEG‘𝑁))𝑦)))
34		brbtwn 26205	. . . . . . . 8 ⊢ ((𝑥 ∈ (𝔼‘𝑁) ∧ 𝑝 ∈ (𝔼‘𝑁) ∧ 𝑦 ∈ (𝔼‘𝑁)) → (𝑥 Btwn ⟨𝑝, 𝑦⟩ ↔ ∃𝑙 ∈ (0[,]1)∀𝑖 ∈ (1...𝑁)(𝑥‘𝑖) = (((1 − 𝑙) · (𝑝‘𝑖)) + (𝑙 · (𝑦‘𝑖)))))
35	19, 15, 25, 34	syl3anc 1494	. . . . . . 7 ⊢ (((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝 ∈ 𝑃) → (𝑥 Btwn ⟨𝑝, 𝑦⟩ ↔ ∃𝑙 ∈ (0[,]1)∀𝑖 ∈ (1...𝑁)(𝑥‘𝑖) = (((1 − 𝑙) · (𝑝‘𝑖)) + (𝑙 · (𝑦‘𝑖)))))
36	33, 35	bitr3d 273	. . . . . 6 ⊢ (((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝 ∈ 𝑃) → (𝑥 ∈ (𝑝(Itv‘(EEG‘𝑁))𝑦) ↔ ∃𝑙 ∈ (0[,]1)∀𝑖 ∈ (1...𝑁)(𝑥‘𝑖) = (((1 − 𝑙) · (𝑝‘𝑖)) + (𝑙 · (𝑦‘𝑖)))))
37		0xr 10410	. . . . . . . . . 10 ⊢ 0 ∈ ℝ^*
38		1xr 10423	. . . . . . . . . 10 ⊢ 1 ∈ ℝ^*
39		0le1 10882	. . . . . . . . . 10 ⊢ 0 ≤ 1
40		snunico 12599	. . . . . . . . . 10 ⊢ ((0 ∈ ℝ^* ∧ 1 ∈ ℝ^* ∧ 0 ≤ 1) → ((0[,)1) ∪ {1}) = (0[,]1))
41	37, 38, 39, 40	mp3an 1589	. . . . . . . . 9 ⊢ ((0[,)1) ∪ {1}) = (0[,]1)
42	41	eqcomi 2834	. . . . . . . 8 ⊢ (0[,]1) = ((0[,)1) ∪ {1})
43	42	a1i 11	. . . . . . 7 ⊢ (((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝 ∈ 𝑃) → (0[,]1) = ((0[,)1) ∪ {1}))
44	43	rexeqdv 3357	. . . . . 6 ⊢ (((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝 ∈ 𝑃) → (∃𝑙 ∈ (0[,]1)∀𝑖 ∈ (1...𝑁)(𝑥‘𝑖) = (((1 − 𝑙) · (𝑝‘𝑖)) + (𝑙 · (𝑦‘𝑖))) ↔ ∃𝑙 ∈ ((0[,)1) ∪ {1})∀𝑖 ∈ (1...𝑁)(𝑥‘𝑖) = (((1 − 𝑙) · (𝑝‘𝑖)) + (𝑙 · (𝑦‘𝑖)))))
45		rexun 4022	. . . . . . 7 ⊢ (∃𝑙 ∈ ((0[,)1) ∪ {1})∀𝑖 ∈ (1...𝑁)(𝑥‘𝑖) = (((1 − 𝑙) · (𝑝‘𝑖)) + (𝑙 · (𝑦‘𝑖))) ↔ (∃𝑙 ∈ (0[,)1)∀𝑖 ∈ (1...𝑁)(𝑥‘𝑖) = (((1 − 𝑙) · (𝑝‘𝑖)) + (𝑙 · (𝑦‘𝑖))) ∨ ∃𝑙 ∈ {1}∀𝑖 ∈ (1...𝑁)(𝑥‘𝑖) = (((1 − 𝑙) · (𝑝‘𝑖)) + (𝑙 · (𝑦‘𝑖)))))
46		eldifsn 4538	. . . . . . . . . . . . . 14 ⊢ (𝑦 ∈ (𝑃 ∖ {𝑥}) ↔ (𝑦 ∈ 𝑃 ∧ 𝑦 ≠ 𝑥))
47		elee 26200	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ (𝑁 ∈ ℕ → (𝑥 ∈ (𝔼‘𝑁) ↔ 𝑥:(1...𝑁)⟶ℝ))
48		ffn 6282	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ (𝑥:(1...𝑁)⟶ℝ → 𝑥 Fn (1...𝑁))
49	47, 48	syl6bi 245	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ (𝑁 ∈ ℕ → (𝑥 ∈ (𝔼‘𝑁) → 𝑥 Fn (1...𝑁)))
50	16, 49	sylbid 232	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (𝑁 ∈ ℕ → (𝑥 ∈ 𝑃 → 𝑥 Fn (1...𝑁)))
51	50	a1i 11	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (𝑦 ∈ 𝑃 → (𝑁 ∈ ℕ → (𝑥 ∈ 𝑃 → 𝑥 Fn (1...𝑁))))
52	51	3imp 1141	. . . . . . . . . . . . . . . . . . . . 21 ⊢ ((𝑦 ∈ 𝑃 ∧ 𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃) → 𝑥 Fn (1...𝑁))
53		elee 26200	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ (𝑁 ∈ ℕ → (𝑦 ∈ (𝔼‘𝑁) ↔ 𝑦:(1...𝑁)⟶ℝ))
54		ffn 6282	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ (𝑦:(1...𝑁)⟶ℝ → 𝑦 Fn (1...𝑁))
55	53, 54	syl6bi 245	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ (𝑁 ∈ ℕ → (𝑦 ∈ (𝔼‘𝑁) → 𝑦 Fn (1...𝑁)))
56	20, 55	sylbid 232	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (𝑁 ∈ ℕ → (𝑦 ∈ 𝑃 → 𝑦 Fn (1...𝑁)))
57	56	a1i 11	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (𝑥 ∈ 𝑃 → (𝑁 ∈ ℕ → (𝑦 ∈ 𝑃 → 𝑦 Fn (1...𝑁))))
58	57	3imp31 1143	. . . . . . . . . . . . . . . . . . . . 21 ⊢ ((𝑦 ∈ 𝑃 ∧ 𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃) → 𝑦 Fn (1...𝑁))
59		eqfnfv 6565	. . . . . . . . . . . . . . . . . . . . 21 ⊢ ((𝑥 Fn (1...𝑁) ∧ 𝑦 Fn (1...𝑁)) → (𝑥 = 𝑦 ↔ ∀𝑖 ∈ (1...𝑁)(𝑥‘𝑖) = (𝑦‘𝑖)))
60	52, 58, 59	syl2anc 579	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝑦 ∈ 𝑃 ∧ 𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃) → (𝑥 = 𝑦 ↔ ∀𝑖 ∈ (1...𝑁)(𝑥‘𝑖) = (𝑦‘𝑖)))
61	60	biimprd 240	. . . . . . . . . . . . . . . . . . 19 ⊢ ((𝑦 ∈ 𝑃 ∧ 𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃) → (∀𝑖 ∈ (1...𝑁)(𝑥‘𝑖) = (𝑦‘𝑖) → 𝑥 = 𝑦))
62		eqcom 2832	. . . . . . . . . . . . . . . . . . 19 ⊢ (𝑦 = 𝑥 ↔ 𝑥 = 𝑦)
63	61, 62	syl6ibr 244	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝑦 ∈ 𝑃 ∧ 𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃) → (∀𝑖 ∈ (1...𝑁)(𝑥‘𝑖) = (𝑦‘𝑖) → 𝑦 = 𝑥))
64	63	necon3ad 3012	. . . . . . . . . . . . . . . . 17 ⊢ ((𝑦 ∈ 𝑃 ∧ 𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃) → (𝑦 ≠ 𝑥 → ¬ ∀𝑖 ∈ (1...𝑁)(𝑥‘𝑖) = (𝑦‘𝑖)))
65	64	3exp 1152	. . . . . . . . . . . . . . . 16 ⊢ (𝑦 ∈ 𝑃 → (𝑁 ∈ ℕ → (𝑥 ∈ 𝑃 → (𝑦 ≠ 𝑥 → ¬ ∀𝑖 ∈ (1...𝑁)(𝑥‘𝑖) = (𝑦‘𝑖)))))
66	65	com24 95	. . . . . . . . . . . . . . 15 ⊢ (𝑦 ∈ 𝑃 → (𝑦 ≠ 𝑥 → (𝑥 ∈ 𝑃 → (𝑁 ∈ ℕ → ¬ ∀𝑖 ∈ (1...𝑁)(𝑥‘𝑖) = (𝑦‘𝑖)))))
67	66	imp 397	. . . . . . . . . . . . . 14 ⊢ ((𝑦 ∈ 𝑃 ∧ 𝑦 ≠ 𝑥) → (𝑥 ∈ 𝑃 → (𝑁 ∈ ℕ → ¬ ∀𝑖 ∈ (1...𝑁)(𝑥‘𝑖) = (𝑦‘𝑖))))
68	46, 67	sylbi 209	. . . . . . . . . . . . 13 ⊢ (𝑦 ∈ (𝑃 ∖ {𝑥}) → (𝑥 ∈ 𝑃 → (𝑁 ∈ ℕ → ¬ ∀𝑖 ∈ (1...𝑁)(𝑥‘𝑖) = (𝑦‘𝑖))))
69	68	3imp31 1143	. . . . . . . . . . . 12 ⊢ ((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) → ¬ ∀𝑖 ∈ (1...𝑁)(𝑥‘𝑖) = (𝑦‘𝑖))
70	69	adantr 474	. . . . . . . . . . 11 ⊢ (((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝 ∈ 𝑃) → ¬ ∀𝑖 ∈ (1...𝑁)(𝑥‘𝑖) = (𝑦‘𝑖))
71	12	eleq2d 2892	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (𝑁 ∈ ℕ → (𝑝 ∈ 𝑃 ↔ 𝑝 ∈ (𝔼‘𝑁)))
72		elee 26200	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (𝑁 ∈ ℕ → (𝑝 ∈ (𝔼‘𝑁) ↔ 𝑝:(1...𝑁)⟶ℝ))
73	72	biimpd 221	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (𝑁 ∈ ℕ → (𝑝 ∈ (𝔼‘𝑁) → 𝑝:(1...𝑁)⟶ℝ))
74	71, 73	sylbid 232	. . . . . . . . . . . . . . . . . . . 20 ⊢ (𝑁 ∈ ℕ → (𝑝 ∈ 𝑃 → 𝑝:(1...𝑁)⟶ℝ))
75	74	3ad2ant1 1167	. . . . . . . . . . . . . . . . . . 19 ⊢ ((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) → (𝑝 ∈ 𝑃 → 𝑝:(1...𝑁)⟶ℝ))
76	75	imp 397	. . . . . . . . . . . . . . . . . 18 ⊢ (((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝 ∈ 𝑃) → 𝑝:(1...𝑁)⟶ℝ)
77	76	ffvelrnda 6613	. . . . . . . . . . . . . . . . 17 ⊢ ((((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝 ∈ 𝑃) ∧ 𝑖 ∈ (1...𝑁)) → (𝑝‘𝑖) ∈ ℝ)
78	77	recnd 10392	. . . . . . . . . . . . . . . 16 ⊢ ((((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝 ∈ 𝑃) ∧ 𝑖 ∈ (1...𝑁)) → (𝑝‘𝑖) ∈ ℂ)
79	78	mul02d 10560	. . . . . . . . . . . . . . 15 ⊢ ((((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝 ∈ 𝑃) ∧ 𝑖 ∈ (1...𝑁)) → (0 · (𝑝‘𝑖)) = 0)
80	21, 53	mpbidi 233	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (𝑦 ∈ 𝑃 → (𝑁 ∈ ℕ → 𝑦:(1...𝑁)⟶ℝ))
81	80, 6	syl11 33	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (𝑁 ∈ ℕ → (𝑦 ∈ (𝑃 ∖ {𝑥}) → 𝑦:(1...𝑁)⟶ℝ))
82	81	a1d 25	. . . . . . . . . . . . . . . . . . . 20 ⊢ (𝑁 ∈ ℕ → (𝑥 ∈ 𝑃 → (𝑦 ∈ (𝑃 ∖ {𝑥}) → 𝑦:(1...𝑁)⟶ℝ)))
83	82	3imp 1141	. . . . . . . . . . . . . . . . . . 19 ⊢ ((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) → 𝑦:(1...𝑁)⟶ℝ)
84	83	adantr 474	. . . . . . . . . . . . . . . . . 18 ⊢ (((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝 ∈ 𝑃) → 𝑦:(1...𝑁)⟶ℝ)
85	84	ffvelrnda 6613	. . . . . . . . . . . . . . . . 17 ⊢ ((((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝 ∈ 𝑃) ∧ 𝑖 ∈ (1...𝑁)) → (𝑦‘𝑖) ∈ ℝ)
86	85	recnd 10392	. . . . . . . . . . . . . . . 16 ⊢ ((((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝 ∈ 𝑃) ∧ 𝑖 ∈ (1...𝑁)) → (𝑦‘𝑖) ∈ ℂ)
87	86	mulid2d 10382	. . . . . . . . . . . . . . 15 ⊢ ((((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝 ∈ 𝑃) ∧ 𝑖 ∈ (1...𝑁)) → (1 · (𝑦‘𝑖)) = (𝑦‘𝑖))
88	79, 87	oveq12d 6928	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝 ∈ 𝑃) ∧ 𝑖 ∈ (1...𝑁)) → ((0 · (𝑝‘𝑖)) + (1 · (𝑦‘𝑖))) = (0 + (𝑦‘𝑖)))
89	86	addid2d 10563	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝 ∈ 𝑃) ∧ 𝑖 ∈ (1...𝑁)) → (0 + (𝑦‘𝑖)) = (𝑦‘𝑖))
90	88, 89	eqtrd 2861	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝 ∈ 𝑃) ∧ 𝑖 ∈ (1...𝑁)) → ((0 · (𝑝‘𝑖)) + (1 · (𝑦‘𝑖))) = (𝑦‘𝑖))
91	90	eqeq2d 2835	. . . . . . . . . . . 12 ⊢ ((((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝 ∈ 𝑃) ∧ 𝑖 ∈ (1...𝑁)) → ((𝑥‘𝑖) = ((0 · (𝑝‘𝑖)) + (1 · (𝑦‘𝑖))) ↔ (𝑥‘𝑖) = (𝑦‘𝑖)))
92	91	ralbidva 3194	. . . . . . . . . . 11 ⊢ (((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝 ∈ 𝑃) → (∀𝑖 ∈ (1...𝑁)(𝑥‘𝑖) = ((0 · (𝑝‘𝑖)) + (1 · (𝑦‘𝑖))) ↔ ∀𝑖 ∈ (1...𝑁)(𝑥‘𝑖) = (𝑦‘𝑖)))
93	70, 92	mtbird 317	. . . . . . . . . 10 ⊢ (((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝 ∈ 𝑃) → ¬ ∀𝑖 ∈ (1...𝑁)(𝑥‘𝑖) = ((0 · (𝑝‘𝑖)) + (1 · (𝑦‘𝑖))))
94		1re 10363	. . . . . . . . . . 11 ⊢ 1 ∈ ℝ
95		oveq2 6918	. . . . . . . . . . . . . . . . 17 ⊢ (𝑙 = 1 → (1 − 𝑙) = (1 − 1))
96	95	oveq1d 6925	. . . . . . . . . . . . . . . 16 ⊢ (𝑙 = 1 → ((1 − 𝑙) · (𝑝‘𝑖)) = ((1 − 1) · (𝑝‘𝑖)))
97		1m1e0 11430	. . . . . . . . . . . . . . . . 17 ⊢ (1 − 1) = 0
98	97	oveq1i 6920	. . . . . . . . . . . . . . . 16 ⊢ ((1 − 1) · (𝑝‘𝑖)) = (0 · (𝑝‘𝑖))
99	96, 98	syl6eq 2877	. . . . . . . . . . . . . . 15 ⊢ (𝑙 = 1 → ((1 − 𝑙) · (𝑝‘𝑖)) = (0 · (𝑝‘𝑖)))
100		oveq1 6917	. . . . . . . . . . . . . . 15 ⊢ (𝑙 = 1 → (𝑙 · (𝑦‘𝑖)) = (1 · (𝑦‘𝑖)))
101	99, 100	oveq12d 6928	. . . . . . . . . . . . . 14 ⊢ (𝑙 = 1 → (((1 − 𝑙) · (𝑝‘𝑖)) + (𝑙 · (𝑦‘𝑖))) = ((0 · (𝑝‘𝑖)) + (1 · (𝑦‘𝑖))))
102	101	eqeq2d 2835	. . . . . . . . . . . . 13 ⊢ (𝑙 = 1 → ((𝑥‘𝑖) = (((1 − 𝑙) · (𝑝‘𝑖)) + (𝑙 · (𝑦‘𝑖))) ↔ (𝑥‘𝑖) = ((0 · (𝑝‘𝑖)) + (1 · (𝑦‘𝑖)))))
103	102	ralbidv 3195	. . . . . . . . . . . 12 ⊢ (𝑙 = 1 → (∀𝑖 ∈ (1...𝑁)(𝑥‘𝑖) = (((1 − 𝑙) · (𝑝‘𝑖)) + (𝑙 · (𝑦‘𝑖))) ↔ ∀𝑖 ∈ (1...𝑁)(𝑥‘𝑖) = ((0 · (𝑝‘𝑖)) + (1 · (𝑦‘𝑖)))))
104	103	rexsng 4441	. . . . . . . . . . 11 ⊢ (1 ∈ ℝ → (∃𝑙 ∈ {1}∀𝑖 ∈ (1...𝑁)(𝑥‘𝑖) = (((1 − 𝑙) · (𝑝‘𝑖)) + (𝑙 · (𝑦‘𝑖))) ↔ ∀𝑖 ∈ (1...𝑁)(𝑥‘𝑖) = ((0 · (𝑝‘𝑖)) + (1 · (𝑦‘𝑖)))))
105	94, 104	ax-mp 5	. . . . . . . . . 10 ⊢ (∃𝑙 ∈ {1}∀𝑖 ∈ (1...𝑁)(𝑥‘𝑖) = (((1 − 𝑙) · (𝑝‘𝑖)) + (𝑙 · (𝑦‘𝑖))) ↔ ∀𝑖 ∈ (1...𝑁)(𝑥‘𝑖) = ((0 · (𝑝‘𝑖)) + (1 · (𝑦‘𝑖))))
106	93, 105	sylnibr 321	. . . . . . . . 9 ⊢ (((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝 ∈ 𝑃) → ¬ ∃𝑙 ∈ {1}∀𝑖 ∈ (1...𝑁)(𝑥‘𝑖) = (((1 − 𝑙) · (𝑝‘𝑖)) + (𝑙 · (𝑦‘𝑖))))
107	28	raleqi 3354	. . . . . . . . . . 11 ⊢ (∀𝑖 ∈ 𝐼 (𝑥‘𝑖) = (((1 − 𝑙) · (𝑝‘𝑖)) + (𝑙 · (𝑦‘𝑖))) ↔ ∀𝑖 ∈ (1...𝑁)(𝑥‘𝑖) = (((1 − 𝑙) · (𝑝‘𝑖)) + (𝑙 · (𝑦‘𝑖))))
108	107	rexbii 3251	. . . . . . . . . 10 ⊢ (∃𝑙 ∈ (0[,)1)∀𝑖 ∈ 𝐼 (𝑥‘𝑖) = (((1 − 𝑙) · (𝑝‘𝑖)) + (𝑙 · (𝑦‘𝑖))) ↔ ∃𝑙 ∈ (0[,)1)∀𝑖 ∈ (1...𝑁)(𝑥‘𝑖) = (((1 − 𝑙) · (𝑝‘𝑖)) + (𝑙 · (𝑦‘𝑖))))
109		biorf 965	. . . . . . . . . 10 ⊢ (¬ ∃𝑙 ∈ {1}∀𝑖 ∈ (1...𝑁)(𝑥‘𝑖) = (((1 − 𝑙) · (𝑝‘𝑖)) + (𝑙 · (𝑦‘𝑖))) → (∃𝑙 ∈ (0[,)1)∀𝑖 ∈ (1...𝑁)(𝑥‘𝑖) = (((1 − 𝑙) · (𝑝‘𝑖)) + (𝑙 · (𝑦‘𝑖))) ↔ (∃𝑙 ∈ {1}∀𝑖 ∈ (1...𝑁)(𝑥‘𝑖) = (((1 − 𝑙) · (𝑝‘𝑖)) + (𝑙 · (𝑦‘𝑖))) ∨ ∃𝑙 ∈ (0[,)1)∀𝑖 ∈ (1...𝑁)(𝑥‘𝑖) = (((1 − 𝑙) · (𝑝‘𝑖)) + (𝑙 · (𝑦‘𝑖))))))
110	108, 109	syl5bb 275	. . . . . . . . 9 ⊢ (¬ ∃𝑙 ∈ {1}∀𝑖 ∈ (1...𝑁)(𝑥‘𝑖) = (((1 − 𝑙) · (𝑝‘𝑖)) + (𝑙 · (𝑦‘𝑖))) → (∃𝑙 ∈ (0[,)1)∀𝑖 ∈ 𝐼 (𝑥‘𝑖) = (((1 − 𝑙) · (𝑝‘𝑖)) + (𝑙 · (𝑦‘𝑖))) ↔ (∃𝑙 ∈ {1}∀𝑖 ∈ (1...𝑁)(𝑥‘𝑖) = (((1 − 𝑙) · (𝑝‘𝑖)) + (𝑙 · (𝑦‘𝑖))) ∨ ∃𝑙 ∈ (0[,)1)∀𝑖 ∈ (1...𝑁)(𝑥‘𝑖) = (((1 − 𝑙) · (𝑝‘𝑖)) + (𝑙 · (𝑦‘𝑖))))))
111	106, 110	syl 17	. . . . . . . 8 ⊢ (((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝 ∈ 𝑃) → (∃𝑙 ∈ (0[,)1)∀𝑖 ∈ 𝐼 (𝑥‘𝑖) = (((1 − 𝑙) · (𝑝‘𝑖)) + (𝑙 · (𝑦‘𝑖))) ↔ (∃𝑙 ∈ {1}∀𝑖 ∈ (1...𝑁)(𝑥‘𝑖) = (((1 − 𝑙) · (𝑝‘𝑖)) + (𝑙 · (𝑦‘𝑖))) ∨ ∃𝑙 ∈ (0[,)1)∀𝑖 ∈ (1...𝑁)(𝑥‘𝑖) = (((1 − 𝑙) · (𝑝‘𝑖)) + (𝑙 · (𝑦‘𝑖))))))
112		orcom 901	. . . . . . . 8 ⊢ ((∃𝑙 ∈ {1}∀𝑖 ∈ (1...𝑁)(𝑥‘𝑖) = (((1 − 𝑙) · (𝑝‘𝑖)) + (𝑙 · (𝑦‘𝑖))) ∨ ∃𝑙 ∈ (0[,)1)∀𝑖 ∈ (1...𝑁)(𝑥‘𝑖) = (((1 − 𝑙) · (𝑝‘𝑖)) + (𝑙 · (𝑦‘𝑖)))) ↔ (∃𝑙 ∈ (0[,)1)∀𝑖 ∈ (1...𝑁)(𝑥‘𝑖) = (((1 − 𝑙) · (𝑝‘𝑖)) + (𝑙 · (𝑦‘𝑖))) ∨ ∃𝑙 ∈ {1}∀𝑖 ∈ (1...𝑁)(𝑥‘𝑖) = (((1 − 𝑙) · (𝑝‘𝑖)) + (𝑙 · (𝑦‘𝑖)))))
113	111, 112	syl6rbb 280	. . . . . . 7 ⊢ (((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝 ∈ 𝑃) → ((∃𝑙 ∈ (0[,)1)∀𝑖 ∈ (1...𝑁)(𝑥‘𝑖) = (((1 − 𝑙) · (𝑝‘𝑖)) + (𝑙 · (𝑦‘𝑖))) ∨ ∃𝑙 ∈ {1}∀𝑖 ∈ (1...𝑁)(𝑥‘𝑖) = (((1 − 𝑙) · (𝑝‘𝑖)) + (𝑙 · (𝑦‘𝑖)))) ↔ ∃𝑙 ∈ (0[,)1)∀𝑖 ∈ 𝐼 (𝑥‘𝑖) = (((1 − 𝑙) · (𝑝‘𝑖)) + (𝑙 · (𝑦‘𝑖)))))
114	45, 113	syl5bb 275	. . . . . 6 ⊢ (((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝 ∈ 𝑃) → (∃𝑙 ∈ ((0[,)1) ∪ {1})∀𝑖 ∈ (1...𝑁)(𝑥‘𝑖) = (((1 − 𝑙) · (𝑝‘𝑖)) + (𝑙 · (𝑦‘𝑖))) ↔ ∃𝑙 ∈ (0[,)1)∀𝑖 ∈ 𝐼 (𝑥‘𝑖) = (((1 − 𝑙) · (𝑝‘𝑖)) + (𝑙 · (𝑦‘𝑖)))))
115	36, 44, 114	3bitrd 297	. . . . 5 ⊢ (((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝 ∈ 𝑃) → (𝑥 ∈ (𝑝(Itv‘(EEG‘𝑁))𝑦) ↔ ∃𝑙 ∈ (0[,)1)∀𝑖 ∈ 𝐼 (𝑥‘𝑖) = (((1 − 𝑙) · (𝑝‘𝑖)) + (𝑙 · (𝑦‘𝑖)))))
116	4, 1, 2, 5, 9, 8	ebtwntg 26288	. . . . . . 7 ⊢ (((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝 ∈ 𝑃) → (𝑦 Btwn ⟨𝑥, 𝑝⟩ ↔ 𝑦 ∈ (𝑥(Itv‘(EEG‘𝑁))𝑝)))
117		brbtwn 26205	. . . . . . . 8 ⊢ ((𝑦 ∈ (𝔼‘𝑁) ∧ 𝑥 ∈ (𝔼‘𝑁) ∧ 𝑝 ∈ (𝔼‘𝑁)) → (𝑦 Btwn ⟨𝑥, 𝑝⟩ ↔ ∃𝑚 ∈ (0[,]1)∀𝑖 ∈ (1...𝑁)(𝑦‘𝑖) = (((1 − 𝑚) · (𝑥‘𝑖)) + (𝑚 · (𝑝‘𝑖)))))
118	25, 19, 15, 117	syl3anc 1494	. . . . . . 7 ⊢ (((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝 ∈ 𝑃) → (𝑦 Btwn ⟨𝑥, 𝑝⟩ ↔ ∃𝑚 ∈ (0[,]1)∀𝑖 ∈ (1...𝑁)(𝑦‘𝑖) = (((1 − 𝑚) · (𝑥‘𝑖)) + (𝑚 · (𝑝‘𝑖)))))
119	116, 118	bitr3d 273	. . . . . 6 ⊢ (((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝 ∈ 𝑃) → (𝑦 ∈ (𝑥(Itv‘(EEG‘𝑁))𝑝) ↔ ∃𝑚 ∈ (0[,]1)∀𝑖 ∈ (1...𝑁)(𝑦‘𝑖) = (((1 − 𝑚) · (𝑥‘𝑖)) + (𝑚 · (𝑝‘𝑖)))))
120		snunioc 12600	. . . . . . . . . 10 ⊢ ((0 ∈ ℝ^* ∧ 1 ∈ ℝ^* ∧ 0 ≤ 1) → ({0} ∪ (0(,]1)) = (0[,]1))
121	37, 38, 39, 120	mp3an 1589	. . . . . . . . 9 ⊢ ({0} ∪ (0(,]1)) = (0[,]1)
122	121	eqcomi 2834	. . . . . . . 8 ⊢ (0[,]1) = ({0} ∪ (0(,]1))
123	122	a1i 11	. . . . . . 7 ⊢ (((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝 ∈ 𝑃) → (0[,]1) = ({0} ∪ (0(,]1)))
124	123	rexeqdv 3357	. . . . . 6 ⊢ (((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝 ∈ 𝑃) → (∃𝑚 ∈ (0[,]1)∀𝑖 ∈ (1...𝑁)(𝑦‘𝑖) = (((1 − 𝑚) · (𝑥‘𝑖)) + (𝑚 · (𝑝‘𝑖))) ↔ ∃𝑚 ∈ ({0} ∪ (0(,]1))∀𝑖 ∈ (1...𝑁)(𝑦‘𝑖) = (((1 − 𝑚) · (𝑥‘𝑖)) + (𝑚 · (𝑝‘𝑖)))))
125		eqcom 2832	. . . . . . . . . . . 12 ⊢ ((𝑥‘𝑖) = (𝑦‘𝑖) ↔ (𝑦‘𝑖) = (𝑥‘𝑖))
126	125	ralbii 3189	. . . . . . . . . . 11 ⊢ (∀𝑖 ∈ (1...𝑁)(𝑥‘𝑖) = (𝑦‘𝑖) ↔ ∀𝑖 ∈ (1...𝑁)(𝑦‘𝑖) = (𝑥‘𝑖))
127	70, 126	sylnib 320	. . . . . . . . . 10 ⊢ (((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝 ∈ 𝑃) → ¬ ∀𝑖 ∈ (1...𝑁)(𝑦‘𝑖) = (𝑥‘𝑖))
128	16	biimpd 221	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (𝑁 ∈ ℕ → (𝑥 ∈ 𝑃 → 𝑥 ∈ (𝔼‘𝑁)))
129	128, 47	sylibd 231	. . . . . . . . . . . . . . . . . . . 20 ⊢ (𝑁 ∈ ℕ → (𝑥 ∈ 𝑃 → 𝑥:(1...𝑁)⟶ℝ))
130	129	imp 397	. . . . . . . . . . . . . . . . . . 19 ⊢ ((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃) → 𝑥:(1...𝑁)⟶ℝ)
131	130	3adant3 1166	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) → 𝑥:(1...𝑁)⟶ℝ)
132	131	adantr 474	. . . . . . . . . . . . . . . . 17 ⊢ (((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝 ∈ 𝑃) → 𝑥:(1...𝑁)⟶ℝ)
133	132	ffvelrnda 6613	. . . . . . . . . . . . . . . 16 ⊢ ((((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝 ∈ 𝑃) ∧ 𝑖 ∈ (1...𝑁)) → (𝑥‘𝑖) ∈ ℝ)
134	133	recnd 10392	. . . . . . . . . . . . . . 15 ⊢ ((((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝 ∈ 𝑃) ∧ 𝑖 ∈ (1...𝑁)) → (𝑥‘𝑖) ∈ ℂ)
135	134	mulid2d 10382	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝 ∈ 𝑃) ∧ 𝑖 ∈ (1...𝑁)) → (1 · (𝑥‘𝑖)) = (𝑥‘𝑖))
136	135, 79	oveq12d 6928	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝 ∈ 𝑃) ∧ 𝑖 ∈ (1...𝑁)) → ((1 · (𝑥‘𝑖)) + (0 · (𝑝‘𝑖))) = ((𝑥‘𝑖) + 0))
137	134	addid1d 10562	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝 ∈ 𝑃) ∧ 𝑖 ∈ (1...𝑁)) → ((𝑥‘𝑖) + 0) = (𝑥‘𝑖))
138	136, 137	eqtrd 2861	. . . . . . . . . . . 12 ⊢ ((((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝 ∈ 𝑃) ∧ 𝑖 ∈ (1...𝑁)) → ((1 · (𝑥‘𝑖)) + (0 · (𝑝‘𝑖))) = (𝑥‘𝑖))
139	138	eqeq2d 2835	. . . . . . . . . . 11 ⊢ ((((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝 ∈ 𝑃) ∧ 𝑖 ∈ (1...𝑁)) → ((𝑦‘𝑖) = ((1 · (𝑥‘𝑖)) + (0 · (𝑝‘𝑖))) ↔ (𝑦‘𝑖) = (𝑥‘𝑖)))
140	139	ralbidva 3194	. . . . . . . . . 10 ⊢ (((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝 ∈ 𝑃) → (∀𝑖 ∈ (1...𝑁)(𝑦‘𝑖) = ((1 · (𝑥‘𝑖)) + (0 · (𝑝‘𝑖))) ↔ ∀𝑖 ∈ (1...𝑁)(𝑦‘𝑖) = (𝑥‘𝑖)))
141	127, 140	mtbird 317	. . . . . . . . 9 ⊢ (((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝 ∈ 𝑃) → ¬ ∀𝑖 ∈ (1...𝑁)(𝑦‘𝑖) = ((1 · (𝑥‘𝑖)) + (0 · (𝑝‘𝑖))))
142		0re 10365	. . . . . . . . . 10 ⊢ 0 ∈ ℝ
143		oveq2 6918	. . . . . . . . . . . . . . . 16 ⊢ (𝑚 = 0 → (1 − 𝑚) = (1 − 0))
144	143	oveq1d 6925	. . . . . . . . . . . . . . 15 ⊢ (𝑚 = 0 → ((1 − 𝑚) · (𝑥‘𝑖)) = ((1 − 0) · (𝑥‘𝑖)))
145		1m0e1 11486	. . . . . . . . . . . . . . . 16 ⊢ (1 − 0) = 1
146	145	oveq1i 6920	. . . . . . . . . . . . . . 15 ⊢ ((1 − 0) · (𝑥‘𝑖)) = (1 · (𝑥‘𝑖))
147	144, 146	syl6eq 2877	. . . . . . . . . . . . . 14 ⊢ (𝑚 = 0 → ((1 − 𝑚) · (𝑥‘𝑖)) = (1 · (𝑥‘𝑖)))
148		oveq1 6917	. . . . . . . . . . . . . 14 ⊢ (𝑚 = 0 → (𝑚 · (𝑝‘𝑖)) = (0 · (𝑝‘𝑖)))
149	147, 148	oveq12d 6928	. . . . . . . . . . . . 13 ⊢ (𝑚 = 0 → (((1 − 𝑚) · (𝑥‘𝑖)) + (𝑚 · (𝑝‘𝑖))) = ((1 · (𝑥‘𝑖)) + (0 · (𝑝‘𝑖))))
150	149	eqeq2d 2835	. . . . . . . . . . . 12 ⊢ (𝑚 = 0 → ((𝑦‘𝑖) = (((1 − 𝑚) · (𝑥‘𝑖)) + (𝑚 · (𝑝‘𝑖))) ↔ (𝑦‘𝑖) = ((1 · (𝑥‘𝑖)) + (0 · (𝑝‘𝑖)))))
151	150	ralbidv 3195	. . . . . . . . . . 11 ⊢ (𝑚 = 0 → (∀𝑖 ∈ (1...𝑁)(𝑦‘𝑖) = (((1 − 𝑚) · (𝑥‘𝑖)) + (𝑚 · (𝑝‘𝑖))) ↔ ∀𝑖 ∈ (1...𝑁)(𝑦‘𝑖) = ((1 · (𝑥‘𝑖)) + (0 · (𝑝‘𝑖)))))
152	151	rexsng 4441	. . . . . . . . . 10 ⊢ (0 ∈ ℝ → (∃𝑚 ∈ {0}∀𝑖 ∈ (1...𝑁)(𝑦‘𝑖) = (((1 − 𝑚) · (𝑥‘𝑖)) + (𝑚 · (𝑝‘𝑖))) ↔ ∀𝑖 ∈ (1...𝑁)(𝑦‘𝑖) = ((1 · (𝑥‘𝑖)) + (0 · (𝑝‘𝑖)))))
153	142, 152	ax-mp 5	. . . . . . . . 9 ⊢ (∃𝑚 ∈ {0}∀𝑖 ∈ (1...𝑁)(𝑦‘𝑖) = (((1 − 𝑚) · (𝑥‘𝑖)) + (𝑚 · (𝑝‘𝑖))) ↔ ∀𝑖 ∈ (1...𝑁)(𝑦‘𝑖) = ((1 · (𝑥‘𝑖)) + (0 · (𝑝‘𝑖))))
154	141, 153	sylnibr 321	. . . . . . . 8 ⊢ (((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝 ∈ 𝑃) → ¬ ∃𝑚 ∈ {0}∀𝑖 ∈ (1...𝑁)(𝑦‘𝑖) = (((1 − 𝑚) · (𝑥‘𝑖)) + (𝑚 · (𝑝‘𝑖))))
155	28	raleqi 3354	. . . . . . . . . 10 ⊢ (∀𝑖 ∈ 𝐼 (𝑦‘𝑖) = (((1 − 𝑚) · (𝑥‘𝑖)) + (𝑚 · (𝑝‘𝑖))) ↔ ∀𝑖 ∈ (1...𝑁)(𝑦‘𝑖) = (((1 − 𝑚) · (𝑥‘𝑖)) + (𝑚 · (𝑝‘𝑖))))
156	155	rexbii 3251	. . . . . . . . 9 ⊢ (∃𝑚 ∈ (0(,]1)∀𝑖 ∈ 𝐼 (𝑦‘𝑖) = (((1 − 𝑚) · (𝑥‘𝑖)) + (𝑚 · (𝑝‘𝑖))) ↔ ∃𝑚 ∈ (0(,]1)∀𝑖 ∈ (1...𝑁)(𝑦‘𝑖) = (((1 − 𝑚) · (𝑥‘𝑖)) + (𝑚 · (𝑝‘𝑖))))
157		biorf 965	. . . . . . . . 9 ⊢ (¬ ∃𝑚 ∈ {0}∀𝑖 ∈ (1...𝑁)(𝑦‘𝑖) = (((1 − 𝑚) · (𝑥‘𝑖)) + (𝑚 · (𝑝‘𝑖))) → (∃𝑚 ∈ (0(,]1)∀𝑖 ∈ (1...𝑁)(𝑦‘𝑖) = (((1 − 𝑚) · (𝑥‘𝑖)) + (𝑚 · (𝑝‘𝑖))) ↔ (∃𝑚 ∈ {0}∀𝑖 ∈ (1...𝑁)(𝑦‘𝑖) = (((1 − 𝑚) · (𝑥‘𝑖)) + (𝑚 · (𝑝‘𝑖))) ∨ ∃𝑚 ∈ (0(,]1)∀𝑖 ∈ (1...𝑁)(𝑦‘𝑖) = (((1 − 𝑚) · (𝑥‘𝑖)) + (𝑚 · (𝑝‘𝑖))))))
158	156, 157	syl5bb 275	. . . . . . . 8 ⊢ (¬ ∃𝑚 ∈ {0}∀𝑖 ∈ (1...𝑁)(𝑦‘𝑖) = (((1 − 𝑚) · (𝑥‘𝑖)) + (𝑚 · (𝑝‘𝑖))) → (∃𝑚 ∈ (0(,]1)∀𝑖 ∈ 𝐼 (𝑦‘𝑖) = (((1 − 𝑚) · (𝑥‘𝑖)) + (𝑚 · (𝑝‘𝑖))) ↔ (∃𝑚 ∈ {0}∀𝑖 ∈ (1...𝑁)(𝑦‘𝑖) = (((1 − 𝑚) · (𝑥‘𝑖)) + (𝑚 · (𝑝‘𝑖))) ∨ ∃𝑚 ∈ (0(,]1)∀𝑖 ∈ (1...𝑁)(𝑦‘𝑖) = (((1 − 𝑚) · (𝑥‘𝑖)) + (𝑚 · (𝑝‘𝑖))))))
159	154, 158	syl 17	. . . . . . 7 ⊢ (((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝 ∈ 𝑃) → (∃𝑚 ∈ (0(,]1)∀𝑖 ∈ 𝐼 (𝑦‘𝑖) = (((1 − 𝑚) · (𝑥‘𝑖)) + (𝑚 · (𝑝‘𝑖))) ↔ (∃𝑚 ∈ {0}∀𝑖 ∈ (1...𝑁)(𝑦‘𝑖) = (((1 − 𝑚) · (𝑥‘𝑖)) + (𝑚 · (𝑝‘𝑖))) ∨ ∃𝑚 ∈ (0(,]1)∀𝑖 ∈ (1...𝑁)(𝑦‘𝑖) = (((1 − 𝑚) · (𝑥‘𝑖)) + (𝑚 · (𝑝‘𝑖))))))
160		rexun 4022	. . . . . . 7 ⊢ (∃𝑚 ∈ ({0} ∪ (0(,]1))∀𝑖 ∈ (1...𝑁)(𝑦‘𝑖) = (((1 − 𝑚) · (𝑥‘𝑖)) + (𝑚 · (𝑝‘𝑖))) ↔ (∃𝑚 ∈ {0}∀𝑖 ∈ (1...𝑁)(𝑦‘𝑖) = (((1 − 𝑚) · (𝑥‘𝑖)) + (𝑚 · (𝑝‘𝑖))) ∨ ∃𝑚 ∈ (0(,]1)∀𝑖 ∈ (1...𝑁)(𝑦‘𝑖) = (((1 − 𝑚) · (𝑥‘𝑖)) + (𝑚 · (𝑝‘𝑖)))))
161	159, 160	syl6rbbr 282	. . . . . 6 ⊢ (((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝 ∈ 𝑃) → (∃𝑚 ∈ ({0} ∪ (0(,]1))∀𝑖 ∈ (1...𝑁)(𝑦‘𝑖) = (((1 − 𝑚) · (𝑥‘𝑖)) + (𝑚 · (𝑝‘𝑖))) ↔ ∃𝑚 ∈ (0(,]1)∀𝑖 ∈ 𝐼 (𝑦‘𝑖) = (((1 − 𝑚) · (𝑥‘𝑖)) + (𝑚 · (𝑝‘𝑖)))))
162	119, 124, 161	3bitrd 297	. . . . 5 ⊢ (((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝 ∈ 𝑃) → (𝑦 ∈ (𝑥(Itv‘(EEG‘𝑁))𝑝) ↔ ∃𝑚 ∈ (0(,]1)∀𝑖 ∈ 𝐼 (𝑦‘𝑖) = (((1 − 𝑚) · (𝑥‘𝑖)) + (𝑚 · (𝑝‘𝑖)))))
163	32, 115, 162	3orbi123d 1563	. . . 4 ⊢ (((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝 ∈ 𝑃) → ((𝑝 ∈ (𝑥(Itv‘(EEG‘𝑁))𝑦) ∨ 𝑥 ∈ (𝑝(Itv‘(EEG‘𝑁))𝑦) ∨ 𝑦 ∈ (𝑥(Itv‘(EEG‘𝑁))𝑝)) ↔ (∃𝑘 ∈ (0[,]1)∀𝑖 ∈ 𝐼 (𝑝‘𝑖) = (((1 − 𝑘) · (𝑥‘𝑖)) + (𝑘 · (𝑦‘𝑖))) ∨ ∃𝑙 ∈ (0[,)1)∀𝑖 ∈ 𝐼 (𝑥‘𝑖) = (((1 − 𝑙) · (𝑝‘𝑖)) + (𝑙 · (𝑦‘𝑖))) ∨ ∃𝑚 ∈ (0(,]1)∀𝑖 ∈ 𝐼 (𝑦‘𝑖) = (((1 − 𝑚) · (𝑥‘𝑖)) + (𝑚 · (𝑝‘𝑖))))))
164	163	rabbidva 3401	. . 3 ⊢ ((𝑁 ∈ ℕ ∧ 𝑥 ∈ 𝑃 ∧ 𝑦 ∈ (𝑃 ∖ {𝑥})) → {𝑝 ∈ 𝑃 ∣ (𝑝 ∈ (𝑥(Itv‘(EEG‘𝑁))𝑦) ∨ 𝑥 ∈ (𝑝(Itv‘(EEG‘𝑁))𝑦) ∨ 𝑦 ∈ (𝑥(Itv‘(EEG‘𝑁))𝑝))} = {𝑝 ∈ 𝑃 ∣ (∃𝑘 ∈ (0[,]1)∀𝑖 ∈ 𝐼 (𝑝‘𝑖) = (((1 − 𝑘) · (𝑥‘𝑖)) + (𝑘 · (𝑦‘𝑖))) ∨ ∃𝑙 ∈ (0[,)1)∀𝑖 ∈ 𝐼 (𝑥‘𝑖) = (((1 − 𝑙) · (𝑝‘𝑖)) + (𝑙 · (𝑦‘𝑖))) ∨ ∃𝑚 ∈ (0(,]1)∀𝑖 ∈ 𝐼 (𝑦‘𝑖) = (((1 − 𝑚) · (𝑥‘𝑖)) + (𝑚 · (𝑝‘𝑖))))})
165	164	mpt2eq3dva 6984	. 2 ⊢ (𝑁 ∈ ℕ → (𝑥 ∈ 𝑃, 𝑦 ∈ (𝑃 ∖ {𝑥}) ↦ {𝑝 ∈ 𝑃 ∣ (𝑝 ∈ (𝑥(Itv‘(EEG‘𝑁))𝑦) ∨ 𝑥 ∈ (𝑝(Itv‘(EEG‘𝑁))𝑦) ∨ 𝑦 ∈ (𝑥(Itv‘(EEG‘𝑁))𝑝))}) = (𝑥 ∈ 𝑃, 𝑦 ∈ (𝑃 ∖ {𝑥}) ↦ {𝑝 ∈ 𝑃 ∣ (∃𝑘 ∈ (0[,]1)∀𝑖 ∈ 𝐼 (𝑝‘𝑖) = (((1 − 𝑘) · (𝑥‘𝑖)) + (𝑘 · (𝑦‘𝑖))) ∨ ∃𝑙 ∈ (0[,)1)∀𝑖 ∈ 𝐼 (𝑥‘𝑖) = (((1 − 𝑙) · (𝑝‘𝑖)) + (𝑙 · (𝑦‘𝑖))) ∨ ∃𝑚 ∈ (0(,]1)∀𝑖 ∈ 𝐼 (𝑦‘𝑖) = (((1 − 𝑚) · (𝑥‘𝑖)) + (𝑚 · (𝑝‘𝑖))))}))
166	3, 165	eqtrd 2861	1 ⊢ (𝑁 ∈ ℕ → (LineG‘(EEG‘𝑁)) = (𝑥 ∈ 𝑃, 𝑦 ∈ (𝑃 ∖ {𝑥}) ↦ {𝑝 ∈ 𝑃 ∣ (∃𝑘 ∈ (0[,]1)∀𝑖 ∈ 𝐼 (𝑝‘𝑖) = (((1 − 𝑘) · (𝑥‘𝑖)) + (𝑘 · (𝑦‘𝑖))) ∨ ∃𝑙 ∈ (0[,)1)∀𝑖 ∈ 𝐼 (𝑥‘𝑖) = (((1 − 𝑙) · (𝑝‘𝑖)) + (𝑙 · (𝑦‘𝑖))) ∨ ∃𝑚 ∈ (0(,]1)∀𝑖 ∈ 𝐼 (𝑦‘𝑖) = (((1 − 𝑚) · (𝑥‘𝑖)) + (𝑚 · (𝑝‘𝑖))))}))

Colors of variables: wff setvar class

Syntax hints: ¬ wn 3 → wi 4 ↔ wb 198 ∧ wa 386 ∨ wo 878 ∨ w3o 1110 ∧ w3a 1111 = wceq 1656 ∈ wcel 2164 ≠ wne 2999 ∀wral 3117 ∃wrex 3118 {crab 3121 ∖ cdif 3795 ∪ cun 3796 {csn 4399 ⟨cop 4405 class class class wbr 4875 Fn wfn 6122 ⟶wf 6123 ‘cfv 6127 (class class class)co 6910 ↦ cmpt2 6912 ℝcr 10258 0cc0 10259 1c1 10260 + caddc 10262 · cmul 10264 ℝ^*cxr 10397 ≤ cle 10399 − cmin 10592 ℕcn 11357 (,]cioc 12471 [,)cico 12472 [,]cicc 12473 ...cfz 12626 Basecbs 16229 Itvcitv 25755 LineGclng 25756 𝔼cee 26194 Btwn cbtwn 26195 EEGceeng 26283

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1894 ax-4 1908 ax-5 2009 ax-6 2075 ax-7 2112 ax-8 2166 ax-9 2173 ax-10 2192 ax-11 2207 ax-12 2220 ax-13 2389 ax-ext 2803 ax-rep 4996 ax-sep 5007 ax-nul 5015 ax-pow 5067 ax-pr 5129 ax-un 7214 ax-cnex 10315 ax-resscn 10316 ax-1cn 10317 ax-icn 10318 ax-addcl 10319 ax-addrcl 10320 ax-mulcl 10321 ax-mulrcl 10322 ax-mulcom 10323 ax-addass 10324 ax-mulass 10325 ax-distr 10326 ax-i2m1 10327 ax-1ne0 10328 ax-1rid 10329 ax-rnegex 10330 ax-rrecex 10331 ax-cnre 10332 ax-pre-lttri 10333 ax-pre-lttrn 10334 ax-pre-ltadd 10335 ax-pre-mulgt0 10336

This theorem depends on definitions: df-bi 199 df-an 387 df-or 879 df-3or 1112 df-3an 1113 df-tru 1660 df-ex 1879 df-nf 1883 df-sb 2068 df-mo 2605 df-eu 2640 df-clab 2812 df-cleq 2818 df-clel 2821 df-nfc 2958 df-ne 3000 df-nel 3103 df-ral 3122 df-rex 3123 df-reu 3124 df-rab 3126 df-v 3416 df-sbc 3663 df-csb 3758 df-dif 3801 df-un 3803 df-in 3805 df-ss 3812 df-pss 3814 df-nul 4147 df-if 4309 df-pw 4382 df-sn 4400 df-pr 4402 df-tp 4404 df-op 4406 df-uni 4661 df-int 4700 df-iun 4744 df-br 4876 df-opab 4938 df-mpt 4955 df-tr 4978 df-id 5252 df-eprel 5257 df-po 5265 df-so 5266 df-fr 5305 df-we 5307 df-xp 5352 df-rel 5353 df-cnv 5354 df-co 5355 df-dm 5356 df-rn 5357 df-res 5358 df-ima 5359 df-pred 5924 df-ord 5970 df-on 5971 df-lim 5972 df-suc 5973 df-iota 6090 df-fun 6129 df-fn 6130 df-f 6131 df-f1 6132 df-fo 6133 df-f1o 6134 df-fv 6135 df-riota 6871 df-ov 6913 df-oprab 6914 df-mpt2 6915 df-om 7332 df-1st 7433 df-2nd 7434 df-wrecs 7677 df-recs 7739 df-rdg 7777 df-1o 7831 df-oadd 7835 df-er 8014 df-map 8129 df-en 8229 df-dom 8230 df-sdom 8231 df-fin 8232 df-pnf 10400 df-mnf 10401 df-xr 10402 df-ltxr 10403 df-le 10404 df-sub 10594 df-neg 10595 df-nn 11358 df-2 11421 df-3 11422 df-4 11423 df-5 11424 df-6 11425 df-7 11426 df-8 11427 df-9 11428 df-n0 11626 df-z 11712 df-dec 11829 df-uz 11976 df-ioc 12475 df-ico 12476 df-icc 12477 df-fz 12627 df-seq 13103 df-sum 14801 df-struct 16231 df-ndx 16232 df-slot 16233 df-base 16235 df-ds 16334 df-itv 25757 df-lng 25758 df-ee 26197 df-btwn 26198 df-eeng 26284

This theorem is referenced by: eenglngeehlnm 43303

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