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Theorem elntg2 29018
Description: The line definition in the Tarski structure for the Euclidean geometry. In contrast to elntg 29017, the betweenness can be strengthened by excluding 1 resp. 0 from the related intervals (because of 𝑥𝑦). (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)) = (𝑥𝑃, 𝑦 ∈ (𝑃 ∖ {𝑥}) ↦ {𝑝𝑃 ∣ (∃𝑘 ∈ (0[,]1)∀𝑖𝐼 (𝑝𝑖) = (((1 − 𝑘) · (𝑥𝑖)) + (𝑘 · (𝑦𝑖))) ∨ ∃𝑙 ∈ (0[,)1)∀𝑖𝐼 (𝑥𝑖) = (((1 − 𝑙) · (𝑝𝑖)) + (𝑙 · (𝑦𝑖))) ∨ ∃𝑚 ∈ (0(,]1)∀𝑖𝐼 (𝑦𝑖) = (((1 − 𝑚) · (𝑥𝑖)) + (𝑚 · (𝑝𝑖))))}))
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
StepHypRef Expression
1 elntg2.1 . . 3 𝑃 = (Base‘(EEG‘𝑁))
2 eqid 2740 . . 3 (Itv‘(EEG‘𝑁)) = (Itv‘(EEG‘𝑁))
31, 2elntg 29017 . 2 (𝑁 ∈ ℕ → (LineG‘(EEG‘𝑁)) = (𝑥𝑃, 𝑦 ∈ (𝑃 ∖ {𝑥}) ↦ {𝑝𝑃 ∣ (𝑝 ∈ (𝑥(Itv‘(EEG‘𝑁))𝑦) ∨ 𝑥 ∈ (𝑝(Itv‘(EEG‘𝑁))𝑦) ∨ 𝑦 ∈ (𝑥(Itv‘(EEG‘𝑁))𝑝))}))
4 simpl1 1191 . . . . . . 7 (((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝𝑃) → 𝑁 ∈ ℕ)
5 simpl2 1192 . . . . . . 7 (((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝𝑃) → 𝑥𝑃)
6 eldifi 4154 . . . . . . . . 9 (𝑦 ∈ (𝑃 ∖ {𝑥}) → 𝑦𝑃)
763ad2ant3 1135 . . . . . . . 8 ((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) → 𝑦𝑃)
87adantr 480 . . . . . . 7 (((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝𝑃) → 𝑦𝑃)
9 simpr 484 . . . . . . 7 (((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝𝑃) → 𝑝𝑃)
104, 1, 2, 5, 8, 9ebtwntg 29015 . . . . . 6 (((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝𝑃) → (𝑝 Btwn ⟨𝑥, 𝑦⟩ ↔ 𝑝 ∈ (𝑥(Itv‘(EEG‘𝑁))𝑦)))
11 eengbas 29014 . . . . . . . . . . . 12 (𝑁 ∈ ℕ → (𝔼‘𝑁) = (Base‘(EEG‘𝑁)))
121, 11eqtr4id 2799 . . . . . . . . . . 11 (𝑁 ∈ ℕ → 𝑃 = (𝔼‘𝑁))
13123ad2ant1 1133 . . . . . . . . . 10 ((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) → 𝑃 = (𝔼‘𝑁))
1413eleq2d 2830 . . . . . . . . 9 ((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) → (𝑝𝑃𝑝 ∈ (𝔼‘𝑁)))
1514biimpa 476 . . . . . . . 8 (((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝𝑃) → 𝑝 ∈ (𝔼‘𝑁))
1612eleq2d 2830 . . . . . . . . . . 11 (𝑁 ∈ ℕ → (𝑥𝑃𝑥 ∈ (𝔼‘𝑁)))
1716biimpa 476 . . . . . . . . . 10 ((𝑁 ∈ ℕ ∧ 𝑥𝑃) → 𝑥 ∈ (𝔼‘𝑁))
18173adant3 1132 . . . . . . . . 9 ((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) → 𝑥 ∈ (𝔼‘𝑁))
1918adantr 480 . . . . . . . 8 (((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝𝑃) → 𝑥 ∈ (𝔼‘𝑁))
2012eleq2d 2830 . . . . . . . . . . . . 13 (𝑁 ∈ ℕ → (𝑦𝑃𝑦 ∈ (𝔼‘𝑁)))
2120biimpcd 249 . . . . . . . . . . . 12 (𝑦𝑃 → (𝑁 ∈ ℕ → 𝑦 ∈ (𝔼‘𝑁)))
2221, 6syl11 33 . . . . . . . . . . 11 (𝑁 ∈ ℕ → (𝑦 ∈ (𝑃 ∖ {𝑥}) → 𝑦 ∈ (𝔼‘𝑁)))
2322a1d 25 . . . . . . . . . 10 (𝑁 ∈ ℕ → (𝑥𝑃 → (𝑦 ∈ (𝑃 ∖ {𝑥}) → 𝑦 ∈ (𝔼‘𝑁))))
24233imp 1111 . . . . . . . . 9 ((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) → 𝑦 ∈ (𝔼‘𝑁))
2524adantr 480 . . . . . . . 8 (((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝𝑃) → 𝑦 ∈ (𝔼‘𝑁))
26 brbtwn 28932 . . . . . . . 8 ((𝑝 ∈ (𝔼‘𝑁) ∧ 𝑥 ∈ (𝔼‘𝑁) ∧ 𝑦 ∈ (𝔼‘𝑁)) → (𝑝 Btwn ⟨𝑥, 𝑦⟩ ↔ ∃𝑘 ∈ (0[,]1)∀𝑖 ∈ (1...𝑁)(𝑝𝑖) = (((1 − 𝑘) · (𝑥𝑖)) + (𝑘 · (𝑦𝑖)))))
2715, 19, 25, 26syl3anc 1371 . . . . . . 7 (((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝𝑃) → (𝑝 Btwn ⟨𝑥, 𝑦⟩ ↔ ∃𝑘 ∈ (0[,]1)∀𝑖 ∈ (1...𝑁)(𝑝𝑖) = (((1 − 𝑘) · (𝑥𝑖)) + (𝑘 · (𝑦𝑖)))))
28 elntg2.2 . . . . . . . . 9 𝐼 = (1...𝑁)
2928raleqi 3332 . . . . . . . 8 (∀𝑖𝐼 (𝑝𝑖) = (((1 − 𝑘) · (𝑥𝑖)) + (𝑘 · (𝑦𝑖))) ↔ ∀𝑖 ∈ (1...𝑁)(𝑝𝑖) = (((1 − 𝑘) · (𝑥𝑖)) + (𝑘 · (𝑦𝑖))))
3029rexbii 3100 . . . . . . 7 (∃𝑘 ∈ (0[,]1)∀𝑖𝐼 (𝑝𝑖) = (((1 − 𝑘) · (𝑥𝑖)) + (𝑘 · (𝑦𝑖))) ↔ ∃𝑘 ∈ (0[,]1)∀𝑖 ∈ (1...𝑁)(𝑝𝑖) = (((1 − 𝑘) · (𝑥𝑖)) + (𝑘 · (𝑦𝑖))))
3127, 30bitr4di 289 . . . . . 6 (((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝𝑃) → (𝑝 Btwn ⟨𝑥, 𝑦⟩ ↔ ∃𝑘 ∈ (0[,]1)∀𝑖𝐼 (𝑝𝑖) = (((1 − 𝑘) · (𝑥𝑖)) + (𝑘 · (𝑦𝑖)))))
3210, 31bitr3d 281 . . . . 5 (((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝𝑃) → (𝑝 ∈ (𝑥(Itv‘(EEG‘𝑁))𝑦) ↔ ∃𝑘 ∈ (0[,]1)∀𝑖𝐼 (𝑝𝑖) = (((1 − 𝑘) · (𝑥𝑖)) + (𝑘 · (𝑦𝑖)))))
334, 1, 2, 9, 8, 5ebtwntg 29015 . . . . . . 7 (((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝𝑃) → (𝑥 Btwn ⟨𝑝, 𝑦⟩ ↔ 𝑥 ∈ (𝑝(Itv‘(EEG‘𝑁))𝑦)))
34 brbtwn 28932 . . . . . . . 8 ((𝑥 ∈ (𝔼‘𝑁) ∧ 𝑝 ∈ (𝔼‘𝑁) ∧ 𝑦 ∈ (𝔼‘𝑁)) → (𝑥 Btwn ⟨𝑝, 𝑦⟩ ↔ ∃𝑙 ∈ (0[,]1)∀𝑖 ∈ (1...𝑁)(𝑥𝑖) = (((1 − 𝑙) · (𝑝𝑖)) + (𝑙 · (𝑦𝑖)))))
3519, 15, 25, 34syl3anc 1371 . . . . . . 7 (((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝𝑃) → (𝑥 Btwn ⟨𝑝, 𝑦⟩ ↔ ∃𝑙 ∈ (0[,]1)∀𝑖 ∈ (1...𝑁)(𝑥𝑖) = (((1 − 𝑙) · (𝑝𝑖)) + (𝑙 · (𝑦𝑖)))))
3633, 35bitr3d 281 . . . . . 6 (((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝𝑃) → (𝑥 ∈ (𝑝(Itv‘(EEG‘𝑁))𝑦) ↔ ∃𝑙 ∈ (0[,]1)∀𝑖 ∈ (1...𝑁)(𝑥𝑖) = (((1 − 𝑙) · (𝑝𝑖)) + (𝑙 · (𝑦𝑖)))))
37 0xr 11337 . . . . . . . . . 10 0 ∈ ℝ*
38 1xr 11349 . . . . . . . . . 10 1 ∈ ℝ*
39 0le1 11813 . . . . . . . . . 10 0 ≤ 1
40 snunico 13539 . . . . . . . . . 10 ((0 ∈ ℝ* ∧ 1 ∈ ℝ* ∧ 0 ≤ 1) → ((0[,)1) ∪ {1}) = (0[,]1))
4137, 38, 39, 40mp3an 1461 . . . . . . . . 9 ((0[,)1) ∪ {1}) = (0[,]1)
4241eqcomi 2749 . . . . . . . 8 (0[,]1) = ((0[,)1) ∪ {1})
4342a1i 11 . . . . . . 7 (((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝𝑃) → (0[,]1) = ((0[,)1) ∪ {1}))
4443rexeqdv 3335 . . . . . 6 (((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝𝑃) → (∃𝑙 ∈ (0[,]1)∀𝑖 ∈ (1...𝑁)(𝑥𝑖) = (((1 − 𝑙) · (𝑝𝑖)) + (𝑙 · (𝑦𝑖))) ↔ ∃𝑙 ∈ ((0[,)1) ∪ {1})∀𝑖 ∈ (1...𝑁)(𝑥𝑖) = (((1 − 𝑙) · (𝑝𝑖)) + (𝑙 · (𝑦𝑖)))))
45 rexun 4219 . . . . . . 7 (∃𝑙 ∈ ((0[,)1) ∪ {1})∀𝑖 ∈ (1...𝑁)(𝑥𝑖) = (((1 − 𝑙) · (𝑝𝑖)) + (𝑙 · (𝑦𝑖))) ↔ (∃𝑙 ∈ (0[,)1)∀𝑖 ∈ (1...𝑁)(𝑥𝑖) = (((1 − 𝑙) · (𝑝𝑖)) + (𝑙 · (𝑦𝑖))) ∨ ∃𝑙 ∈ {1}∀𝑖 ∈ (1...𝑁)(𝑥𝑖) = (((1 − 𝑙) · (𝑝𝑖)) + (𝑙 · (𝑦𝑖)))))
46 eldifsn 4811 . . . . . . . . . . . . . 14 (𝑦 ∈ (𝑃 ∖ {𝑥}) ↔ (𝑦𝑃𝑦𝑥))
47 elee 28927 . . . . . . . . . . . . . . . . . . . . . . . . 25 (𝑁 ∈ ℕ → (𝑥 ∈ (𝔼‘𝑁) ↔ 𝑥:(1...𝑁)⟶ℝ))
48 ffn 6747 . . . . . . . . . . . . . . . . . . . . . . . . 25 (𝑥:(1...𝑁)⟶ℝ → 𝑥 Fn (1...𝑁))
4947, 48biimtrdi 253 . . . . . . . . . . . . . . . . . . . . . . . 24 (𝑁 ∈ ℕ → (𝑥 ∈ (𝔼‘𝑁) → 𝑥 Fn (1...𝑁)))
5016, 49sylbid 240 . . . . . . . . . . . . . . . . . . . . . . 23 (𝑁 ∈ ℕ → (𝑥𝑃𝑥 Fn (1...𝑁)))
5150a1i 11 . . . . . . . . . . . . . . . . . . . . . 22 (𝑦𝑃 → (𝑁 ∈ ℕ → (𝑥𝑃𝑥 Fn (1...𝑁))))
52513imp 1111 . . . . . . . . . . . . . . . . . . . . 21 ((𝑦𝑃𝑁 ∈ ℕ ∧ 𝑥𝑃) → 𝑥 Fn (1...𝑁))
53 elee 28927 . . . . . . . . . . . . . . . . . . . . . . . . 25 (𝑁 ∈ ℕ → (𝑦 ∈ (𝔼‘𝑁) ↔ 𝑦:(1...𝑁)⟶ℝ))
54 ffn 6747 . . . . . . . . . . . . . . . . . . . . . . . . 25 (𝑦:(1...𝑁)⟶ℝ → 𝑦 Fn (1...𝑁))
5553, 54biimtrdi 253 . . . . . . . . . . . . . . . . . . . . . . . 24 (𝑁 ∈ ℕ → (𝑦 ∈ (𝔼‘𝑁) → 𝑦 Fn (1...𝑁)))
5620, 55sylbid 240 . . . . . . . . . . . . . . . . . . . . . . 23 (𝑁 ∈ ℕ → (𝑦𝑃𝑦 Fn (1...𝑁)))
5756a1i 11 . . . . . . . . . . . . . . . . . . . . . 22 (𝑥𝑃 → (𝑁 ∈ ℕ → (𝑦𝑃𝑦 Fn (1...𝑁))))
58573imp31 1112 . . . . . . . . . . . . . . . . . . . . 21 ((𝑦𝑃𝑁 ∈ ℕ ∧ 𝑥𝑃) → 𝑦 Fn (1...𝑁))
59 eqfnfv 7064 . . . . . . . . . . . . . . . . . . . . 21 ((𝑥 Fn (1...𝑁) ∧ 𝑦 Fn (1...𝑁)) → (𝑥 = 𝑦 ↔ ∀𝑖 ∈ (1...𝑁)(𝑥𝑖) = (𝑦𝑖)))
6052, 58, 59syl2anc 583 . . . . . . . . . . . . . . . . . . . 20 ((𝑦𝑃𝑁 ∈ ℕ ∧ 𝑥𝑃) → (𝑥 = 𝑦 ↔ ∀𝑖 ∈ (1...𝑁)(𝑥𝑖) = (𝑦𝑖)))
6160biimprd 248 . . . . . . . . . . . . . . . . . . 19 ((𝑦𝑃𝑁 ∈ ℕ ∧ 𝑥𝑃) → (∀𝑖 ∈ (1...𝑁)(𝑥𝑖) = (𝑦𝑖) → 𝑥 = 𝑦))
62 eqcom 2747 . . . . . . . . . . . . . . . . . . 19 (𝑦 = 𝑥𝑥 = 𝑦)
6361, 62imbitrrdi 252 . . . . . . . . . . . . . . . . . 18 ((𝑦𝑃𝑁 ∈ ℕ ∧ 𝑥𝑃) → (∀𝑖 ∈ (1...𝑁)(𝑥𝑖) = (𝑦𝑖) → 𝑦 = 𝑥))
6463necon3ad 2959 . . . . . . . . . . . . . . . . 17 ((𝑦𝑃𝑁 ∈ ℕ ∧ 𝑥𝑃) → (𝑦𝑥 → ¬ ∀𝑖 ∈ (1...𝑁)(𝑥𝑖) = (𝑦𝑖)))
65643exp 1119 . . . . . . . . . . . . . . . 16 (𝑦𝑃 → (𝑁 ∈ ℕ → (𝑥𝑃 → (𝑦𝑥 → ¬ ∀𝑖 ∈ (1...𝑁)(𝑥𝑖) = (𝑦𝑖)))))
6665com24 95 . . . . . . . . . . . . . . 15 (𝑦𝑃 → (𝑦𝑥 → (𝑥𝑃 → (𝑁 ∈ ℕ → ¬ ∀𝑖 ∈ (1...𝑁)(𝑥𝑖) = (𝑦𝑖)))))
6766imp 406 . . . . . . . . . . . . . 14 ((𝑦𝑃𝑦𝑥) → (𝑥𝑃 → (𝑁 ∈ ℕ → ¬ ∀𝑖 ∈ (1...𝑁)(𝑥𝑖) = (𝑦𝑖))))
6846, 67sylbi 217 . . . . . . . . . . . . 13 (𝑦 ∈ (𝑃 ∖ {𝑥}) → (𝑥𝑃 → (𝑁 ∈ ℕ → ¬ ∀𝑖 ∈ (1...𝑁)(𝑥𝑖) = (𝑦𝑖))))
69683imp31 1112 . . . . . . . . . . . 12 ((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) → ¬ ∀𝑖 ∈ (1...𝑁)(𝑥𝑖) = (𝑦𝑖))
7069adantr 480 . . . . . . . . . . 11 (((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝𝑃) → ¬ ∀𝑖 ∈ (1...𝑁)(𝑥𝑖) = (𝑦𝑖))
7112eleq2d 2830 . . . . . . . . . . . . . . . . . . . . 21 (𝑁 ∈ ℕ → (𝑝𝑃𝑝 ∈ (𝔼‘𝑁)))
72 elee 28927 . . . . . . . . . . . . . . . . . . . . . 22 (𝑁 ∈ ℕ → (𝑝 ∈ (𝔼‘𝑁) ↔ 𝑝:(1...𝑁)⟶ℝ))
7372biimpd 229 . . . . . . . . . . . . . . . . . . . . 21 (𝑁 ∈ ℕ → (𝑝 ∈ (𝔼‘𝑁) → 𝑝:(1...𝑁)⟶ℝ))
7471, 73sylbid 240 . . . . . . . . . . . . . . . . . . . 20 (𝑁 ∈ ℕ → (𝑝𝑃𝑝:(1...𝑁)⟶ℝ))
75743ad2ant1 1133 . . . . . . . . . . . . . . . . . . 19 ((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) → (𝑝𝑃𝑝:(1...𝑁)⟶ℝ))
7675imp 406 . . . . . . . . . . . . . . . . . 18 (((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝𝑃) → 𝑝:(1...𝑁)⟶ℝ)
7776ffvelcdmda 7118 . . . . . . . . . . . . . . . . 17 ((((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝𝑃) ∧ 𝑖 ∈ (1...𝑁)) → (𝑝𝑖) ∈ ℝ)
7877recnd 11318 . . . . . . . . . . . . . . . 16 ((((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝𝑃) ∧ 𝑖 ∈ (1...𝑁)) → (𝑝𝑖) ∈ ℂ)
7978mul02d 11488 . . . . . . . . . . . . . . 15 ((((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝𝑃) ∧ 𝑖 ∈ (1...𝑁)) → (0 · (𝑝𝑖)) = 0)
8021, 53mpbidi 241 . . . . . . . . . . . . . . . . . . . . . 22 (𝑦𝑃 → (𝑁 ∈ ℕ → 𝑦:(1...𝑁)⟶ℝ))
8180, 6syl11 33 . . . . . . . . . . . . . . . . . . . . 21 (𝑁 ∈ ℕ → (𝑦 ∈ (𝑃 ∖ {𝑥}) → 𝑦:(1...𝑁)⟶ℝ))
8281a1d 25 . . . . . . . . . . . . . . . . . . . 20 (𝑁 ∈ ℕ → (𝑥𝑃 → (𝑦 ∈ (𝑃 ∖ {𝑥}) → 𝑦:(1...𝑁)⟶ℝ)))
83823imp 1111 . . . . . . . . . . . . . . . . . . 19 ((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) → 𝑦:(1...𝑁)⟶ℝ)
8483adantr 480 . . . . . . . . . . . . . . . . . 18 (((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝𝑃) → 𝑦:(1...𝑁)⟶ℝ)
8584ffvelcdmda 7118 . . . . . . . . . . . . . . . . 17 ((((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝𝑃) ∧ 𝑖 ∈ (1...𝑁)) → (𝑦𝑖) ∈ ℝ)
8685recnd 11318 . . . . . . . . . . . . . . . 16 ((((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝𝑃) ∧ 𝑖 ∈ (1...𝑁)) → (𝑦𝑖) ∈ ℂ)
8786mullidd 11308 . . . . . . . . . . . . . . 15 ((((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝𝑃) ∧ 𝑖 ∈ (1...𝑁)) → (1 · (𝑦𝑖)) = (𝑦𝑖))
8879, 87oveq12d 7466 . . . . . . . . . . . . . 14 ((((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝𝑃) ∧ 𝑖 ∈ (1...𝑁)) → ((0 · (𝑝𝑖)) + (1 · (𝑦𝑖))) = (0 + (𝑦𝑖)))
8986addlidd 11491 . . . . . . . . . . . . . 14 ((((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝𝑃) ∧ 𝑖 ∈ (1...𝑁)) → (0 + (𝑦𝑖)) = (𝑦𝑖))
9088, 89eqtrd 2780 . . . . . . . . . . . . 13 ((((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝𝑃) ∧ 𝑖 ∈ (1...𝑁)) → ((0 · (𝑝𝑖)) + (1 · (𝑦𝑖))) = (𝑦𝑖))
9190eqeq2d 2751 . . . . . . . . . . . 12 ((((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝𝑃) ∧ 𝑖 ∈ (1...𝑁)) → ((𝑥𝑖) = ((0 · (𝑝𝑖)) + (1 · (𝑦𝑖))) ↔ (𝑥𝑖) = (𝑦𝑖)))
9291ralbidva 3182 . . . . . . . . . . 11 (((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝𝑃) → (∀𝑖 ∈ (1...𝑁)(𝑥𝑖) = ((0 · (𝑝𝑖)) + (1 · (𝑦𝑖))) ↔ ∀𝑖 ∈ (1...𝑁)(𝑥𝑖) = (𝑦𝑖)))
9370, 92mtbird 325 . . . . . . . . . 10 (((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝𝑃) → ¬ ∀𝑖 ∈ (1...𝑁)(𝑥𝑖) = ((0 · (𝑝𝑖)) + (1 · (𝑦𝑖))))
94 1re 11290 . . . . . . . . . . 11 1 ∈ ℝ
95 oveq2 7456 . . . . . . . . . . . . . . . . 17 (𝑙 = 1 → (1 − 𝑙) = (1 − 1))
9695oveq1d 7463 . . . . . . . . . . . . . . . 16 (𝑙 = 1 → ((1 − 𝑙) · (𝑝𝑖)) = ((1 − 1) · (𝑝𝑖)))
97 1m1e0 12365 . . . . . . . . . . . . . . . . 17 (1 − 1) = 0
9897oveq1i 7458 . . . . . . . . . . . . . . . 16 ((1 − 1) · (𝑝𝑖)) = (0 · (𝑝𝑖))
9996, 98eqtrdi 2796 . . . . . . . . . . . . . . 15 (𝑙 = 1 → ((1 − 𝑙) · (𝑝𝑖)) = (0 · (𝑝𝑖)))
100 oveq1 7455 . . . . . . . . . . . . . . 15 (𝑙 = 1 → (𝑙 · (𝑦𝑖)) = (1 · (𝑦𝑖)))
10199, 100oveq12d 7466 . . . . . . . . . . . . . 14 (𝑙 = 1 → (((1 − 𝑙) · (𝑝𝑖)) + (𝑙 · (𝑦𝑖))) = ((0 · (𝑝𝑖)) + (1 · (𝑦𝑖))))
102101eqeq2d 2751 . . . . . . . . . . . . 13 (𝑙 = 1 → ((𝑥𝑖) = (((1 − 𝑙) · (𝑝𝑖)) + (𝑙 · (𝑦𝑖))) ↔ (𝑥𝑖) = ((0 · (𝑝𝑖)) + (1 · (𝑦𝑖)))))
103102ralbidv 3184 . . . . . . . . . . . 12 (𝑙 = 1 → (∀𝑖 ∈ (1...𝑁)(𝑥𝑖) = (((1 − 𝑙) · (𝑝𝑖)) + (𝑙 · (𝑦𝑖))) ↔ ∀𝑖 ∈ (1...𝑁)(𝑥𝑖) = ((0 · (𝑝𝑖)) + (1 · (𝑦𝑖)))))
104103rexsng 4698 . . . . . . . . . . 11 (1 ∈ ℝ → (∃𝑙 ∈ {1}∀𝑖 ∈ (1...𝑁)(𝑥𝑖) = (((1 − 𝑙) · (𝑝𝑖)) + (𝑙 · (𝑦𝑖))) ↔ ∀𝑖 ∈ (1...𝑁)(𝑥𝑖) = ((0 · (𝑝𝑖)) + (1 · (𝑦𝑖)))))
10594, 104ax-mp 5 . . . . . . . . . 10 (∃𝑙 ∈ {1}∀𝑖 ∈ (1...𝑁)(𝑥𝑖) = (((1 − 𝑙) · (𝑝𝑖)) + (𝑙 · (𝑦𝑖))) ↔ ∀𝑖 ∈ (1...𝑁)(𝑥𝑖) = ((0 · (𝑝𝑖)) + (1 · (𝑦𝑖))))
10693, 105sylnibr 329 . . . . . . . . 9 (((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝𝑃) → ¬ ∃𝑙 ∈ {1}∀𝑖 ∈ (1...𝑁)(𝑥𝑖) = (((1 − 𝑙) · (𝑝𝑖)) + (𝑙 · (𝑦𝑖))))
10728raleqi 3332 . . . . . . . . . . 11 (∀𝑖𝐼 (𝑥𝑖) = (((1 − 𝑙) · (𝑝𝑖)) + (𝑙 · (𝑦𝑖))) ↔ ∀𝑖 ∈ (1...𝑁)(𝑥𝑖) = (((1 − 𝑙) · (𝑝𝑖)) + (𝑙 · (𝑦𝑖))))
108107rexbii 3100 . . . . . . . . . 10 (∃𝑙 ∈ (0[,)1)∀𝑖𝐼 (𝑥𝑖) = (((1 − 𝑙) · (𝑝𝑖)) + (𝑙 · (𝑦𝑖))) ↔ ∃𝑙 ∈ (0[,)1)∀𝑖 ∈ (1...𝑁)(𝑥𝑖) = (((1 − 𝑙) · (𝑝𝑖)) + (𝑙 · (𝑦𝑖))))
109 biorf 935 . . . . . . . . . 10 (¬ ∃𝑙 ∈ {1}∀𝑖 ∈ (1...𝑁)(𝑥𝑖) = (((1 − 𝑙) · (𝑝𝑖)) + (𝑙 · (𝑦𝑖))) → (∃𝑙 ∈ (0[,)1)∀𝑖 ∈ (1...𝑁)(𝑥𝑖) = (((1 − 𝑙) · (𝑝𝑖)) + (𝑙 · (𝑦𝑖))) ↔ (∃𝑙 ∈ {1}∀𝑖 ∈ (1...𝑁)(𝑥𝑖) = (((1 − 𝑙) · (𝑝𝑖)) + (𝑙 · (𝑦𝑖))) ∨ ∃𝑙 ∈ (0[,)1)∀𝑖 ∈ (1...𝑁)(𝑥𝑖) = (((1 − 𝑙) · (𝑝𝑖)) + (𝑙 · (𝑦𝑖))))))
110108, 109bitrid 283 . . . . . . . . 9 (¬ ∃𝑙 ∈ {1}∀𝑖 ∈ (1...𝑁)(𝑥𝑖) = (((1 − 𝑙) · (𝑝𝑖)) + (𝑙 · (𝑦𝑖))) → (∃𝑙 ∈ (0[,)1)∀𝑖𝐼 (𝑥𝑖) = (((1 − 𝑙) · (𝑝𝑖)) + (𝑙 · (𝑦𝑖))) ↔ (∃𝑙 ∈ {1}∀𝑖 ∈ (1...𝑁)(𝑥𝑖) = (((1 − 𝑙) · (𝑝𝑖)) + (𝑙 · (𝑦𝑖))) ∨ ∃𝑙 ∈ (0[,)1)∀𝑖 ∈ (1...𝑁)(𝑥𝑖) = (((1 − 𝑙) · (𝑝𝑖)) + (𝑙 · (𝑦𝑖))))))
111106, 110syl 17 . . . . . . . 8 (((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝𝑃) → (∃𝑙 ∈ (0[,)1)∀𝑖𝐼 (𝑥𝑖) = (((1 − 𝑙) · (𝑝𝑖)) + (𝑙 · (𝑦𝑖))) ↔ (∃𝑙 ∈ {1}∀𝑖 ∈ (1...𝑁)(𝑥𝑖) = (((1 − 𝑙) · (𝑝𝑖)) + (𝑙 · (𝑦𝑖))) ∨ ∃𝑙 ∈ (0[,)1)∀𝑖 ∈ (1...𝑁)(𝑥𝑖) = (((1 − 𝑙) · (𝑝𝑖)) + (𝑙 · (𝑦𝑖))))))
112 orcom 869 . . . . . . . 8 ((∃𝑙 ∈ {1}∀𝑖 ∈ (1...𝑁)(𝑥𝑖) = (((1 − 𝑙) · (𝑝𝑖)) + (𝑙 · (𝑦𝑖))) ∨ ∃𝑙 ∈ (0[,)1)∀𝑖 ∈ (1...𝑁)(𝑥𝑖) = (((1 − 𝑙) · (𝑝𝑖)) + (𝑙 · (𝑦𝑖)))) ↔ (∃𝑙 ∈ (0[,)1)∀𝑖 ∈ (1...𝑁)(𝑥𝑖) = (((1 − 𝑙) · (𝑝𝑖)) + (𝑙 · (𝑦𝑖))) ∨ ∃𝑙 ∈ {1}∀𝑖 ∈ (1...𝑁)(𝑥𝑖) = (((1 − 𝑙) · (𝑝𝑖)) + (𝑙 · (𝑦𝑖)))))
113111, 112bitr2di 288 . . . . . . 7 (((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝𝑃) → ((∃𝑙 ∈ (0[,)1)∀𝑖 ∈ (1...𝑁)(𝑥𝑖) = (((1 − 𝑙) · (𝑝𝑖)) + (𝑙 · (𝑦𝑖))) ∨ ∃𝑙 ∈ {1}∀𝑖 ∈ (1...𝑁)(𝑥𝑖) = (((1 − 𝑙) · (𝑝𝑖)) + (𝑙 · (𝑦𝑖)))) ↔ ∃𝑙 ∈ (0[,)1)∀𝑖𝐼 (𝑥𝑖) = (((1 − 𝑙) · (𝑝𝑖)) + (𝑙 · (𝑦𝑖)))))
11445, 113bitrid 283 . . . . . 6 (((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝𝑃) → (∃𝑙 ∈ ((0[,)1) ∪ {1})∀𝑖 ∈ (1...𝑁)(𝑥𝑖) = (((1 − 𝑙) · (𝑝𝑖)) + (𝑙 · (𝑦𝑖))) ↔ ∃𝑙 ∈ (0[,)1)∀𝑖𝐼 (𝑥𝑖) = (((1 − 𝑙) · (𝑝𝑖)) + (𝑙 · (𝑦𝑖)))))
11536, 44, 1143bitrd 305 . . . . 5 (((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝𝑃) → (𝑥 ∈ (𝑝(Itv‘(EEG‘𝑁))𝑦) ↔ ∃𝑙 ∈ (0[,)1)∀𝑖𝐼 (𝑥𝑖) = (((1 − 𝑙) · (𝑝𝑖)) + (𝑙 · (𝑦𝑖)))))
1164, 1, 2, 5, 9, 8ebtwntg 29015 . . . . . . 7 (((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝𝑃) → (𝑦 Btwn ⟨𝑥, 𝑝⟩ ↔ 𝑦 ∈ (𝑥(Itv‘(EEG‘𝑁))𝑝)))
117 brbtwn 28932 . . . . . . . 8 ((𝑦 ∈ (𝔼‘𝑁) ∧ 𝑥 ∈ (𝔼‘𝑁) ∧ 𝑝 ∈ (𝔼‘𝑁)) → (𝑦 Btwn ⟨𝑥, 𝑝⟩ ↔ ∃𝑚 ∈ (0[,]1)∀𝑖 ∈ (1...𝑁)(𝑦𝑖) = (((1 − 𝑚) · (𝑥𝑖)) + (𝑚 · (𝑝𝑖)))))
11825, 19, 15, 117syl3anc 1371 . . . . . . 7 (((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝𝑃) → (𝑦 Btwn ⟨𝑥, 𝑝⟩ ↔ ∃𝑚 ∈ (0[,]1)∀𝑖 ∈ (1...𝑁)(𝑦𝑖) = (((1 − 𝑚) · (𝑥𝑖)) + (𝑚 · (𝑝𝑖)))))
119116, 118bitr3d 281 . . . . . 6 (((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝𝑃) → (𝑦 ∈ (𝑥(Itv‘(EEG‘𝑁))𝑝) ↔ ∃𝑚 ∈ (0[,]1)∀𝑖 ∈ (1...𝑁)(𝑦𝑖) = (((1 − 𝑚) · (𝑥𝑖)) + (𝑚 · (𝑝𝑖)))))
120 snunioc 13540 . . . . . . . . . 10 ((0 ∈ ℝ* ∧ 1 ∈ ℝ* ∧ 0 ≤ 1) → ({0} ∪ (0(,]1)) = (0[,]1))
12137, 38, 39, 120mp3an 1461 . . . . . . . . 9 ({0} ∪ (0(,]1)) = (0[,]1)
122121eqcomi 2749 . . . . . . . 8 (0[,]1) = ({0} ∪ (0(,]1))
123122a1i 11 . . . . . . 7 (((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝𝑃) → (0[,]1) = ({0} ∪ (0(,]1)))
124123rexeqdv 3335 . . . . . 6 (((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝𝑃) → (∃𝑚 ∈ (0[,]1)∀𝑖 ∈ (1...𝑁)(𝑦𝑖) = (((1 − 𝑚) · (𝑥𝑖)) + (𝑚 · (𝑝𝑖))) ↔ ∃𝑚 ∈ ({0} ∪ (0(,]1))∀𝑖 ∈ (1...𝑁)(𝑦𝑖) = (((1 − 𝑚) · (𝑥𝑖)) + (𝑚 · (𝑝𝑖)))))
125 rexun 4219 . . . . . . 7 (∃𝑚 ∈ ({0} ∪ (0(,]1))∀𝑖 ∈ (1...𝑁)(𝑦𝑖) = (((1 − 𝑚) · (𝑥𝑖)) + (𝑚 · (𝑝𝑖))) ↔ (∃𝑚 ∈ {0}∀𝑖 ∈ (1...𝑁)(𝑦𝑖) = (((1 − 𝑚) · (𝑥𝑖)) + (𝑚 · (𝑝𝑖))) ∨ ∃𝑚 ∈ (0(,]1)∀𝑖 ∈ (1...𝑁)(𝑦𝑖) = (((1 − 𝑚) · (𝑥𝑖)) + (𝑚 · (𝑝𝑖)))))
126 eqcom 2747 . . . . . . . . . . . 12 ((𝑥𝑖) = (𝑦𝑖) ↔ (𝑦𝑖) = (𝑥𝑖))
127126ralbii 3099 . . . . . . . . . . 11 (∀𝑖 ∈ (1...𝑁)(𝑥𝑖) = (𝑦𝑖) ↔ ∀𝑖 ∈ (1...𝑁)(𝑦𝑖) = (𝑥𝑖))
12870, 127sylnib 328 . . . . . . . . . 10 (((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝𝑃) → ¬ ∀𝑖 ∈ (1...𝑁)(𝑦𝑖) = (𝑥𝑖))
12916biimpd 229 . . . . . . . . . . . . . . . . . . . . 21 (𝑁 ∈ ℕ → (𝑥𝑃𝑥 ∈ (𝔼‘𝑁)))
130129, 47sylibd 239 . . . . . . . . . . . . . . . . . . . 20 (𝑁 ∈ ℕ → (𝑥𝑃𝑥:(1...𝑁)⟶ℝ))
131130imp 406 . . . . . . . . . . . . . . . . . . 19 ((𝑁 ∈ ℕ ∧ 𝑥𝑃) → 𝑥:(1...𝑁)⟶ℝ)
1321313adant3 1132 . . . . . . . . . . . . . . . . . 18 ((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) → 𝑥:(1...𝑁)⟶ℝ)
133132adantr 480 . . . . . . . . . . . . . . . . 17 (((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝𝑃) → 𝑥:(1...𝑁)⟶ℝ)
134133ffvelcdmda 7118 . . . . . . . . . . . . . . . 16 ((((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝𝑃) ∧ 𝑖 ∈ (1...𝑁)) → (𝑥𝑖) ∈ ℝ)
135134recnd 11318 . . . . . . . . . . . . . . 15 ((((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝𝑃) ∧ 𝑖 ∈ (1...𝑁)) → (𝑥𝑖) ∈ ℂ)
136135mullidd 11308 . . . . . . . . . . . . . 14 ((((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝𝑃) ∧ 𝑖 ∈ (1...𝑁)) → (1 · (𝑥𝑖)) = (𝑥𝑖))
137136, 79oveq12d 7466 . . . . . . . . . . . . 13 ((((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝𝑃) ∧ 𝑖 ∈ (1...𝑁)) → ((1 · (𝑥𝑖)) + (0 · (𝑝𝑖))) = ((𝑥𝑖) + 0))
138135addridd 11490 . . . . . . . . . . . . 13 ((((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝𝑃) ∧ 𝑖 ∈ (1...𝑁)) → ((𝑥𝑖) + 0) = (𝑥𝑖))
139137, 138eqtrd 2780 . . . . . . . . . . . 12 ((((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝𝑃) ∧ 𝑖 ∈ (1...𝑁)) → ((1 · (𝑥𝑖)) + (0 · (𝑝𝑖))) = (𝑥𝑖))
140139eqeq2d 2751 . . . . . . . . . . 11 ((((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝𝑃) ∧ 𝑖 ∈ (1...𝑁)) → ((𝑦𝑖) = ((1 · (𝑥𝑖)) + (0 · (𝑝𝑖))) ↔ (𝑦𝑖) = (𝑥𝑖)))
141140ralbidva 3182 . . . . . . . . . 10 (((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝𝑃) → (∀𝑖 ∈ (1...𝑁)(𝑦𝑖) = ((1 · (𝑥𝑖)) + (0 · (𝑝𝑖))) ↔ ∀𝑖 ∈ (1...𝑁)(𝑦𝑖) = (𝑥𝑖)))
142128, 141mtbird 325 . . . . . . . . 9 (((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝𝑃) → ¬ ∀𝑖 ∈ (1...𝑁)(𝑦𝑖) = ((1 · (𝑥𝑖)) + (0 · (𝑝𝑖))))
143 0re 11292 . . . . . . . . . 10 0 ∈ ℝ
144 oveq2 7456 . . . . . . . . . . . . . . . 16 (𝑚 = 0 → (1 − 𝑚) = (1 − 0))
145144oveq1d 7463 . . . . . . . . . . . . . . 15 (𝑚 = 0 → ((1 − 𝑚) · (𝑥𝑖)) = ((1 − 0) · (𝑥𝑖)))
146 1m0e1 12414 . . . . . . . . . . . . . . . 16 (1 − 0) = 1
147146oveq1i 7458 . . . . . . . . . . . . . . 15 ((1 − 0) · (𝑥𝑖)) = (1 · (𝑥𝑖))
148145, 147eqtrdi 2796 . . . . . . . . . . . . . 14 (𝑚 = 0 → ((1 − 𝑚) · (𝑥𝑖)) = (1 · (𝑥𝑖)))
149 oveq1 7455 . . . . . . . . . . . . . 14 (𝑚 = 0 → (𝑚 · (𝑝𝑖)) = (0 · (𝑝𝑖)))
150148, 149oveq12d 7466 . . . . . . . . . . . . 13 (𝑚 = 0 → (((1 − 𝑚) · (𝑥𝑖)) + (𝑚 · (𝑝𝑖))) = ((1 · (𝑥𝑖)) + (0 · (𝑝𝑖))))
151150eqeq2d 2751 . . . . . . . . . . . 12 (𝑚 = 0 → ((𝑦𝑖) = (((1 − 𝑚) · (𝑥𝑖)) + (𝑚 · (𝑝𝑖))) ↔ (𝑦𝑖) = ((1 · (𝑥𝑖)) + (0 · (𝑝𝑖)))))
152151ralbidv 3184 . . . . . . . . . . 11 (𝑚 = 0 → (∀𝑖 ∈ (1...𝑁)(𝑦𝑖) = (((1 − 𝑚) · (𝑥𝑖)) + (𝑚 · (𝑝𝑖))) ↔ ∀𝑖 ∈ (1...𝑁)(𝑦𝑖) = ((1 · (𝑥𝑖)) + (0 · (𝑝𝑖)))))
153152rexsng 4698 . . . . . . . . . 10 (0 ∈ ℝ → (∃𝑚 ∈ {0}∀𝑖 ∈ (1...𝑁)(𝑦𝑖) = (((1 − 𝑚) · (𝑥𝑖)) + (𝑚 · (𝑝𝑖))) ↔ ∀𝑖 ∈ (1...𝑁)(𝑦𝑖) = ((1 · (𝑥𝑖)) + (0 · (𝑝𝑖)))))
154143, 153ax-mp 5 . . . . . . . . 9 (∃𝑚 ∈ {0}∀𝑖 ∈ (1...𝑁)(𝑦𝑖) = (((1 − 𝑚) · (𝑥𝑖)) + (𝑚 · (𝑝𝑖))) ↔ ∀𝑖 ∈ (1...𝑁)(𝑦𝑖) = ((1 · (𝑥𝑖)) + (0 · (𝑝𝑖))))
155142, 154sylnibr 329 . . . . . . . 8 (((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝𝑃) → ¬ ∃𝑚 ∈ {0}∀𝑖 ∈ (1...𝑁)(𝑦𝑖) = (((1 − 𝑚) · (𝑥𝑖)) + (𝑚 · (𝑝𝑖))))
15628raleqi 3332 . . . . . . . . . 10 (∀𝑖𝐼 (𝑦𝑖) = (((1 − 𝑚) · (𝑥𝑖)) + (𝑚 · (𝑝𝑖))) ↔ ∀𝑖 ∈ (1...𝑁)(𝑦𝑖) = (((1 − 𝑚) · (𝑥𝑖)) + (𝑚 · (𝑝𝑖))))
157156rexbii 3100 . . . . . . . . 9 (∃𝑚 ∈ (0(,]1)∀𝑖𝐼 (𝑦𝑖) = (((1 − 𝑚) · (𝑥𝑖)) + (𝑚 · (𝑝𝑖))) ↔ ∃𝑚 ∈ (0(,]1)∀𝑖 ∈ (1...𝑁)(𝑦𝑖) = (((1 − 𝑚) · (𝑥𝑖)) + (𝑚 · (𝑝𝑖))))
158 biorf 935 . . . . . . . . 9 (¬ ∃𝑚 ∈ {0}∀𝑖 ∈ (1...𝑁)(𝑦𝑖) = (((1 − 𝑚) · (𝑥𝑖)) + (𝑚 · (𝑝𝑖))) → (∃𝑚 ∈ (0(,]1)∀𝑖 ∈ (1...𝑁)(𝑦𝑖) = (((1 − 𝑚) · (𝑥𝑖)) + (𝑚 · (𝑝𝑖))) ↔ (∃𝑚 ∈ {0}∀𝑖 ∈ (1...𝑁)(𝑦𝑖) = (((1 − 𝑚) · (𝑥𝑖)) + (𝑚 · (𝑝𝑖))) ∨ ∃𝑚 ∈ (0(,]1)∀𝑖 ∈ (1...𝑁)(𝑦𝑖) = (((1 − 𝑚) · (𝑥𝑖)) + (𝑚 · (𝑝𝑖))))))
159157, 158bitrid 283 . . . . . . . 8 (¬ ∃𝑚 ∈ {0}∀𝑖 ∈ (1...𝑁)(𝑦𝑖) = (((1 − 𝑚) · (𝑥𝑖)) + (𝑚 · (𝑝𝑖))) → (∃𝑚 ∈ (0(,]1)∀𝑖𝐼 (𝑦𝑖) = (((1 − 𝑚) · (𝑥𝑖)) + (𝑚 · (𝑝𝑖))) ↔ (∃𝑚 ∈ {0}∀𝑖 ∈ (1...𝑁)(𝑦𝑖) = (((1 − 𝑚) · (𝑥𝑖)) + (𝑚 · (𝑝𝑖))) ∨ ∃𝑚 ∈ (0(,]1)∀𝑖 ∈ (1...𝑁)(𝑦𝑖) = (((1 − 𝑚) · (𝑥𝑖)) + (𝑚 · (𝑝𝑖))))))
160155, 159syl 17 . . . . . . 7 (((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝𝑃) → (∃𝑚 ∈ (0(,]1)∀𝑖𝐼 (𝑦𝑖) = (((1 − 𝑚) · (𝑥𝑖)) + (𝑚 · (𝑝𝑖))) ↔ (∃𝑚 ∈ {0}∀𝑖 ∈ (1...𝑁)(𝑦𝑖) = (((1 − 𝑚) · (𝑥𝑖)) + (𝑚 · (𝑝𝑖))) ∨ ∃𝑚 ∈ (0(,]1)∀𝑖 ∈ (1...𝑁)(𝑦𝑖) = (((1 − 𝑚) · (𝑥𝑖)) + (𝑚 · (𝑝𝑖))))))
161125, 160bitr4id 290 . . . . . 6 (((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝𝑃) → (∃𝑚 ∈ ({0} ∪ (0(,]1))∀𝑖 ∈ (1...𝑁)(𝑦𝑖) = (((1 − 𝑚) · (𝑥𝑖)) + (𝑚 · (𝑝𝑖))) ↔ ∃𝑚 ∈ (0(,]1)∀𝑖𝐼 (𝑦𝑖) = (((1 − 𝑚) · (𝑥𝑖)) + (𝑚 · (𝑝𝑖)))))
162119, 124, 1613bitrd 305 . . . . 5 (((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝𝑃) → (𝑦 ∈ (𝑥(Itv‘(EEG‘𝑁))𝑝) ↔ ∃𝑚 ∈ (0(,]1)∀𝑖𝐼 (𝑦𝑖) = (((1 − 𝑚) · (𝑥𝑖)) + (𝑚 · (𝑝𝑖)))))
16332, 115, 1623orbi123d 1435 . . . 4 (((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) ∧ 𝑝𝑃) → ((𝑝 ∈ (𝑥(Itv‘(EEG‘𝑁))𝑦) ∨ 𝑥 ∈ (𝑝(Itv‘(EEG‘𝑁))𝑦) ∨ 𝑦 ∈ (𝑥(Itv‘(EEG‘𝑁))𝑝)) ↔ (∃𝑘 ∈ (0[,]1)∀𝑖𝐼 (𝑝𝑖) = (((1 − 𝑘) · (𝑥𝑖)) + (𝑘 · (𝑦𝑖))) ∨ ∃𝑙 ∈ (0[,)1)∀𝑖𝐼 (𝑥𝑖) = (((1 − 𝑙) · (𝑝𝑖)) + (𝑙 · (𝑦𝑖))) ∨ ∃𝑚 ∈ (0(,]1)∀𝑖𝐼 (𝑦𝑖) = (((1 − 𝑚) · (𝑥𝑖)) + (𝑚 · (𝑝𝑖))))))
164163rabbidva 3450 . . 3 ((𝑁 ∈ ℕ ∧ 𝑥𝑃𝑦 ∈ (𝑃 ∖ {𝑥})) → {𝑝𝑃 ∣ (𝑝 ∈ (𝑥(Itv‘(EEG‘𝑁))𝑦) ∨ 𝑥 ∈ (𝑝(Itv‘(EEG‘𝑁))𝑦) ∨ 𝑦 ∈ (𝑥(Itv‘(EEG‘𝑁))𝑝))} = {𝑝𝑃 ∣ (∃𝑘 ∈ (0[,]1)∀𝑖𝐼 (𝑝𝑖) = (((1 − 𝑘) · (𝑥𝑖)) + (𝑘 · (𝑦𝑖))) ∨ ∃𝑙 ∈ (0[,)1)∀𝑖𝐼 (𝑥𝑖) = (((1 − 𝑙) · (𝑝𝑖)) + (𝑙 · (𝑦𝑖))) ∨ ∃𝑚 ∈ (0(,]1)∀𝑖𝐼 (𝑦𝑖) = (((1 − 𝑚) · (𝑥𝑖)) + (𝑚 · (𝑝𝑖))))})
165164mpoeq3dva 7527 . 2 (𝑁 ∈ ℕ → (𝑥𝑃, 𝑦 ∈ (𝑃 ∖ {𝑥}) ↦ {𝑝𝑃 ∣ (𝑝 ∈ (𝑥(Itv‘(EEG‘𝑁))𝑦) ∨ 𝑥 ∈ (𝑝(Itv‘(EEG‘𝑁))𝑦) ∨ 𝑦 ∈ (𝑥(Itv‘(EEG‘𝑁))𝑝))}) = (𝑥𝑃, 𝑦 ∈ (𝑃 ∖ {𝑥}) ↦ {𝑝𝑃 ∣ (∃𝑘 ∈ (0[,]1)∀𝑖𝐼 (𝑝𝑖) = (((1 − 𝑘) · (𝑥𝑖)) + (𝑘 · (𝑦𝑖))) ∨ ∃𝑙 ∈ (0[,)1)∀𝑖𝐼 (𝑥𝑖) = (((1 − 𝑙) · (𝑝𝑖)) + (𝑙 · (𝑦𝑖))) ∨ ∃𝑚 ∈ (0(,]1)∀𝑖𝐼 (𝑦𝑖) = (((1 − 𝑚) · (𝑥𝑖)) + (𝑚 · (𝑝𝑖))))}))
1663, 165eqtrd 2780 1 (𝑁 ∈ ℕ → (LineG‘(EEG‘𝑁)) = (𝑥𝑃, 𝑦 ∈ (𝑃 ∖ {𝑥}) ↦ {𝑝𝑃 ∣ (∃𝑘 ∈ (0[,]1)∀𝑖𝐼 (𝑝𝑖) = (((1 − 𝑘) · (𝑥𝑖)) + (𝑘 · (𝑦𝑖))) ∨ ∃𝑙 ∈ (0[,)1)∀𝑖𝐼 (𝑥𝑖) = (((1 − 𝑙) · (𝑝𝑖)) + (𝑙 · (𝑦𝑖))) ∨ ∃𝑚 ∈ (0(,]1)∀𝑖𝐼 (𝑦𝑖) = (((1 − 𝑚) · (𝑥𝑖)) + (𝑚 · (𝑝𝑖))))}))
Colors of variables: wff setvar class
Syntax hints:  ¬ wn 3  wi 4  wb 206  wa 395  wo 846  w3o 1086  w3a 1087   = wceq 1537  wcel 2108  wne 2946  wral 3067  wrex 3076  {crab 3443  cdif 3973  cun 3974  {csn 4648  cop 4654   class class class wbr 5166   Fn wfn 6568  wf 6569  cfv 6573  (class class class)co 7448  cmpo 7450  cr 11183  0cc0 11184  1c1 11185   + caddc 11187   · cmul 11189  *cxr 11323  cle 11325  cmin 11520  cn 12293  (,]cioc 13408  [,)cico 13409  [,]cicc 13410  ...cfz 13567  Basecbs 17258  Itvcitv 28459  LineGclng 28460  𝔼cee 28921   Btwn cbtwn 28922  EEGceeng 29010
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1793  ax-4 1807  ax-5 1909  ax-6 1967  ax-7 2007  ax-8 2110  ax-9 2118  ax-10 2141  ax-11 2158  ax-12 2178  ax-ext 2711  ax-rep 5303  ax-sep 5317  ax-nul 5324  ax-pow 5383  ax-pr 5447  ax-un 7770  ax-cnex 11240  ax-resscn 11241  ax-1cn 11242  ax-icn 11243  ax-addcl 11244  ax-addrcl 11245  ax-mulcl 11246  ax-mulrcl 11247  ax-mulcom 11248  ax-addass 11249  ax-mulass 11250  ax-distr 11251  ax-i2m1 11252  ax-1ne0 11253  ax-1rid 11254  ax-rnegex 11255  ax-rrecex 11256  ax-cnre 11257  ax-pre-lttri 11258  ax-pre-lttrn 11259  ax-pre-ltadd 11260  ax-pre-mulgt0 11261
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 847  df-3or 1088  df-3an 1089  df-tru 1540  df-fal 1550  df-ex 1778  df-nf 1782  df-sb 2065  df-mo 2543  df-eu 2572  df-clab 2718  df-cleq 2732  df-clel 2819  df-nfc 2895  df-ne 2947  df-nel 3053  df-ral 3068  df-rex 3077  df-reu 3389  df-rab 3444  df-v 3490  df-sbc 3805  df-csb 3922  df-dif 3979  df-un 3981  df-in 3983  df-ss 3993  df-pss 3996  df-nul 4353  df-if 4549  df-pw 4624  df-sn 4649  df-pr 4651  df-op 4655  df-uni 4932  df-iun 5017  df-br 5167  df-opab 5229  df-mpt 5250  df-tr 5284  df-id 5593  df-eprel 5599  df-po 5607  df-so 5608  df-fr 5652  df-we 5654  df-xp 5706  df-rel 5707  df-cnv 5708  df-co 5709  df-dm 5710  df-rn 5711  df-res 5712  df-ima 5713  df-pred 6332  df-ord 6398  df-on 6399  df-lim 6400  df-suc 6401  df-iota 6525  df-fun 6575  df-fn 6576  df-f 6577  df-f1 6578  df-fo 6579  df-f1o 6580  df-fv 6581  df-riota 7404  df-ov 7451  df-oprab 7452  df-mpo 7453  df-om 7904  df-1st 8030  df-2nd 8031  df-frecs 8322  df-wrecs 8353  df-recs 8427  df-rdg 8466  df-1o 8522  df-er 8763  df-map 8886  df-en 9004  df-dom 9005  df-sdom 9006  df-fin 9007  df-pnf 11326  df-mnf 11327  df-xr 11328  df-ltxr 11329  df-le 11330  df-sub 11522  df-neg 11523  df-nn 12294  df-2 12356  df-3 12357  df-4 12358  df-5 12359  df-6 12360  df-7 12361  df-8 12362  df-9 12363  df-n0 12554  df-z 12640  df-dec 12759  df-uz 12904  df-ioc 13412  df-ico 13413  df-icc 13414  df-fz 13568  df-seq 14053  df-sum 15735  df-struct 17194  df-slot 17229  df-ndx 17241  df-base 17259  df-ds 17333  df-itv 28461  df-lng 28462  df-ee 28924  df-btwn 28925  df-eeng 29011
This theorem is referenced by:  eenglngeehlnm  48473
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