outsideofeq - Mathbox for Scott Fenton

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Theorem outsideofeq 35097

Description: Uniqueness law for OutsideOf. Analogue of segconeq 34977. (Contributed by Scott Fenton, 24-Oct-2013.) (Revised by Mario Carneiro, 19-Apr-2014.)

**Assertion**
Ref	Expression
outsideofeq	⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) → (((𝐴OutsideOf⟨𝑋, 𝑅⟩ ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐵, 𝐶⟩) ∧ (𝐴OutsideOf⟨𝑌, 𝑅⟩ ∧ ⟨𝐴, 𝑌⟩Cgr⟨𝐵, 𝐶⟩)) → 𝑋 = 𝑌))

**Proof of Theorem outsideofeq**
Step	Hyp	Ref	Expression
1		simp1 1136	. . . . 5 ⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) → 𝑁 ∈ ℕ)
2		simp21 1206	. . . . 5 ⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) → 𝐴 ∈ (𝔼‘𝑁))
3		simp32 1210	. . . . 5 ⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) → 𝑋 ∈ (𝔼‘𝑁))
4		simp22 1207	. . . . 5 ⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) → 𝑅 ∈ (𝔼‘𝑁))
5		broutsideof2 35089	. . . . 5 ⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁))) → (𝐴OutsideOf⟨𝑋, 𝑅⟩ ↔ (𝑋 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑋 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑋⟩))))
6	1, 2, 3, 4, 5	syl13anc 1372	. . . 4 ⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) → (𝐴OutsideOf⟨𝑋, 𝑅⟩ ↔ (𝑋 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑋 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑋⟩))))
7	6	anbi1d 630	. . 3 ⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) → ((𝐴OutsideOf⟨𝑋, 𝑅⟩ ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐵, 𝐶⟩) ↔ ((𝑋 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑋 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑋⟩)) ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐵, 𝐶⟩)))
8		simp33 1211	. . . . 5 ⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) → 𝑌 ∈ (𝔼‘𝑁))
9		broutsideof2 35089	. . . . 5 ⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁))) → (𝐴OutsideOf⟨𝑌, 𝑅⟩ ↔ (𝑌 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑌 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑌⟩))))
10	1, 2, 8, 4, 9	syl13anc 1372	. . . 4 ⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) → (𝐴OutsideOf⟨𝑌, 𝑅⟩ ↔ (𝑌 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑌 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑌⟩))))
11	10	anbi1d 630	. . 3 ⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) → ((𝐴OutsideOf⟨𝑌, 𝑅⟩ ∧ ⟨𝐴, 𝑌⟩Cgr⟨𝐵, 𝐶⟩) ↔ ((𝑌 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑌 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑌⟩)) ∧ ⟨𝐴, 𝑌⟩Cgr⟨𝐵, 𝐶⟩)))
12	7, 11	anbi12d 631	. 2 ⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) → (((𝐴OutsideOf⟨𝑋, 𝑅⟩ ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐵, 𝐶⟩) ∧ (𝐴OutsideOf⟨𝑌, 𝑅⟩ ∧ ⟨𝐴, 𝑌⟩Cgr⟨𝐵, 𝐶⟩)) ↔ (((𝑋 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑋 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑋⟩)) ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐵, 𝐶⟩) ∧ ((𝑌 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑌 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑌⟩)) ∧ ⟨𝐴, 𝑌⟩Cgr⟨𝐵, 𝐶⟩))))
13		simpll3 1214	. . . . . . 7 ⊢ ((((𝑋 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑋 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑋⟩)) ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐵, 𝐶⟩) ∧ ((𝑌 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑌 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑌⟩)) ∧ ⟨𝐴, 𝑌⟩Cgr⟨𝐵, 𝐶⟩)) → (𝑋 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑋⟩))
14		simprl3 1220	. . . . . . 7 ⊢ ((((𝑋 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑋 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑋⟩)) ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐵, 𝐶⟩) ∧ ((𝑌 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑌 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑌⟩)) ∧ ⟨𝐴, 𝑌⟩Cgr⟨𝐵, 𝐶⟩)) → (𝑌 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑌⟩))
15	13, 14	jca 512	. . . . . 6 ⊢ ((((𝑋 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑋 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑋⟩)) ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐵, 𝐶⟩) ∧ ((𝑌 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑌 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑌⟩)) ∧ ⟨𝐴, 𝑌⟩Cgr⟨𝐵, 𝐶⟩)) → ((𝑋 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑋⟩) ∧ (𝑌 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑌⟩)))
16	15	adantl 482	. . . . 5 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ (((𝑋 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑋 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑋⟩)) ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐵, 𝐶⟩) ∧ ((𝑌 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑌 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑌⟩)) ∧ ⟨𝐴, 𝑌⟩Cgr⟨𝐵, 𝐶⟩))) → ((𝑋 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑋⟩) ∧ (𝑌 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑌⟩)))
17		simpll2 1213	. . . . . 6 ⊢ ((((𝑋 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑋 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑋⟩)) ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐵, 𝐶⟩) ∧ ((𝑌 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑌 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑌⟩)) ∧ ⟨𝐴, 𝑌⟩Cgr⟨𝐵, 𝐶⟩)) → 𝑅 ≠ 𝐴)
18	17	adantl 482	. . . . 5 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ (((𝑋 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑋 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑋⟩)) ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐵, 𝐶⟩) ∧ ((𝑌 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑌 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑌⟩)) ∧ ⟨𝐴, 𝑌⟩Cgr⟨𝐵, 𝐶⟩))) → 𝑅 ≠ 𝐴)
19		simp23 1208	. . . . . 6 ⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) → 𝐵 ∈ (𝔼‘𝑁))
20		simp31 1209	. . . . . 6 ⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) → 𝐶 ∈ (𝔼‘𝑁))
21		simprlr 778	. . . . . 6 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ (((𝑋 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑋 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑋⟩)) ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐵, 𝐶⟩) ∧ ((𝑌 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑌 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑌⟩)) ∧ ⟨𝐴, 𝑌⟩Cgr⟨𝐵, 𝐶⟩))) → ⟨𝐴, 𝑋⟩Cgr⟨𝐵, 𝐶⟩)
22		simprrr 780	. . . . . 6 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ (((𝑋 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑋 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑋⟩)) ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐵, 𝐶⟩) ∧ ((𝑌 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑌 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑌⟩)) ∧ ⟨𝐴, 𝑌⟩Cgr⟨𝐵, 𝐶⟩))) → ⟨𝐴, 𝑌⟩Cgr⟨𝐵, 𝐶⟩)
23	1, 2, 3, 2, 8, 19, 20, 21, 22	cgrtr3and 34962	. . . . 5 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ (((𝑋 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑋 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑋⟩)) ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐵, 𝐶⟩) ∧ ((𝑌 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑌 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑌⟩)) ∧ ⟨𝐴, 𝑌⟩Cgr⟨𝐵, 𝐶⟩))) → ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩)
24	16, 18, 23	jca32 516	. . . 4 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ (((𝑋 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑋 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑋⟩)) ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐵, 𝐶⟩) ∧ ((𝑌 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑌 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑌⟩)) ∧ ⟨𝐴, 𝑌⟩Cgr⟨𝐵, 𝐶⟩))) → (((𝑋 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑋⟩) ∧ (𝑌 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑌⟩)) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩)))
25		simprll 777	. . . . . . . 8 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ ((𝑋 Btwn ⟨𝐴, 𝑅⟩ ∧ 𝑌 Btwn ⟨𝐴, 𝑅⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩))) → 𝑋 Btwn ⟨𝐴, 𝑅⟩)
26		simprlr 778	. . . . . . . 8 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ ((𝑋 Btwn ⟨𝐴, 𝑅⟩ ∧ 𝑌 Btwn ⟨𝐴, 𝑅⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩))) → 𝑌 Btwn ⟨𝐴, 𝑅⟩)
27		simprrr 780	. . . . . . . 8 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ ((𝑋 Btwn ⟨𝐴, 𝑅⟩ ∧ 𝑌 Btwn ⟨𝐴, 𝑅⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩))) → ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩)
28		midofsegid 35071	. . . . . . . . . 10 ⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁)) ∧ (𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) → ((𝑋 Btwn ⟨𝐴, 𝑅⟩ ∧ 𝑌 Btwn ⟨𝐴, 𝑅⟩ ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩) → 𝑋 = 𝑌))
29	1, 2, 4, 3, 8, 28	syl122anc 1379	. . . . . . . . 9 ⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) → ((𝑋 Btwn ⟨𝐴, 𝑅⟩ ∧ 𝑌 Btwn ⟨𝐴, 𝑅⟩ ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩) → 𝑋 = 𝑌))
30	29	adantr 481	. . . . . . . 8 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ ((𝑋 Btwn ⟨𝐴, 𝑅⟩ ∧ 𝑌 Btwn ⟨𝐴, 𝑅⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩))) → ((𝑋 Btwn ⟨𝐴, 𝑅⟩ ∧ 𝑌 Btwn ⟨𝐴, 𝑅⟩ ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩) → 𝑋 = 𝑌))
31	25, 26, 27, 30	mp3and 1464	. . . . . . 7 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ ((𝑋 Btwn ⟨𝐴, 𝑅⟩ ∧ 𝑌 Btwn ⟨𝐴, 𝑅⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩))) → 𝑋 = 𝑌)
32	31	exp32 421	. . . . . 6 ⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) → ((𝑋 Btwn ⟨𝐴, 𝑅⟩ ∧ 𝑌 Btwn ⟨𝐴, 𝑅⟩) → ((𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩) → 𝑋 = 𝑌)))
33		simprlr 778	. . . . . . . . 9 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ ((𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑌 Btwn ⟨𝐴, 𝑅⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩))) → 𝑌 Btwn ⟨𝐴, 𝑅⟩)
34		simprll 777	. . . . . . . . 9 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ ((𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑌 Btwn ⟨𝐴, 𝑅⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩))) → 𝑅 Btwn ⟨𝐴, 𝑋⟩)
35	1, 2, 8, 4, 3, 33, 34	btwnexchand 34993	. . . . . . . 8 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ ((𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑌 Btwn ⟨𝐴, 𝑅⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩))) → 𝑌 Btwn ⟨𝐴, 𝑋⟩)
36		simprrr 780	. . . . . . . 8 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ ((𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑌 Btwn ⟨𝐴, 𝑅⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩))) → ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩)
37	1, 2, 3, 8, 35, 36	endofsegidand 35053	. . . . . . 7 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ ((𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑌 Btwn ⟨𝐴, 𝑅⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩))) → 𝑋 = 𝑌)
38	37	exp32 421	. . . . . 6 ⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) → ((𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑌 Btwn ⟨𝐴, 𝑅⟩) → ((𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩) → 𝑋 = 𝑌)))
39		simprll 777	. . . . . . . . . 10 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ ((𝑋 Btwn ⟨𝐴, 𝑅⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩))) → 𝑋 Btwn ⟨𝐴, 𝑅⟩)
40		simprlr 778	. . . . . . . . . 10 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ ((𝑋 Btwn ⟨𝐴, 𝑅⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩))) → 𝑅 Btwn ⟨𝐴, 𝑌⟩)
41	1, 2, 3, 4, 8, 39, 40	btwnexchand 34993	. . . . . . . . 9 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ ((𝑋 Btwn ⟨𝐴, 𝑅⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩))) → 𝑋 Btwn ⟨𝐴, 𝑌⟩)
42		simprrr 780	. . . . . . . . . 10 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ ((𝑋 Btwn ⟨𝐴, 𝑅⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩))) → ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩)
43	1, 2, 3, 2, 8, 42	cgrcomand 34958	. . . . . . . . 9 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ ((𝑋 Btwn ⟨𝐴, 𝑅⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩))) → ⟨𝐴, 𝑌⟩Cgr⟨𝐴, 𝑋⟩)
44	1, 2, 8, 3, 41, 43	endofsegidand 35053	. . . . . . . 8 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ ((𝑋 Btwn ⟨𝐴, 𝑅⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩))) → 𝑌 = 𝑋)
45	44	eqcomd 2738	. . . . . . 7 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ ((𝑋 Btwn ⟨𝐴, 𝑅⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩))) → 𝑋 = 𝑌)
46	45	exp32 421	. . . . . 6 ⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) → ((𝑋 Btwn ⟨𝐴, 𝑅⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) → ((𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩) → 𝑋 = 𝑌)))
47		simprr 771	. . . . . . . . . . 11 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ (((𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩)) ∧ 𝑋 Btwn ⟨𝐴, 𝑌⟩)) → 𝑋 Btwn ⟨𝐴, 𝑌⟩)
48		simplrr 776	. . . . . . . . . . . . 13 ⊢ ((((𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩)) ∧ 𝑋 Btwn ⟨𝐴, 𝑌⟩) → ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩)
49	48	adantl 482	. . . . . . . . . . . 12 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ (((𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩)) ∧ 𝑋 Btwn ⟨𝐴, 𝑌⟩)) → ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩)
50	1, 2, 3, 2, 8, 49	cgrcomand 34958	. . . . . . . . . . 11 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ (((𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩)) ∧ 𝑋 Btwn ⟨𝐴, 𝑌⟩)) → ⟨𝐴, 𝑌⟩Cgr⟨𝐴, 𝑋⟩)
51	1, 2, 8, 3, 47, 50	endofsegidand 35053	. . . . . . . . . 10 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ (((𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩)) ∧ 𝑋 Btwn ⟨𝐴, 𝑌⟩)) → 𝑌 = 𝑋)
52	51	eqcomd 2738	. . . . . . . . 9 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ (((𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩)) ∧ 𝑋 Btwn ⟨𝐴, 𝑌⟩)) → 𝑋 = 𝑌)
53	52	expr 457	. . . . . . . 8 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ ((𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩))) → (𝑋 Btwn ⟨𝐴, 𝑌⟩ → 𝑋 = 𝑌))
54		simprr 771	. . . . . . . . . 10 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ (((𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩)) ∧ 𝑌 Btwn ⟨𝐴, 𝑋⟩)) → 𝑌 Btwn ⟨𝐴, 𝑋⟩)
55		simplrr 776	. . . . . . . . . . 11 ⊢ ((((𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩)) ∧ 𝑌 Btwn ⟨𝐴, 𝑋⟩) → ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩)
56	55	adantl 482	. . . . . . . . . 10 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ (((𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩)) ∧ 𝑌 Btwn ⟨𝐴, 𝑋⟩)) → ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩)
57	1, 2, 3, 8, 54, 56	endofsegidand 35053	. . . . . . . . 9 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ (((𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩)) ∧ 𝑌 Btwn ⟨𝐴, 𝑋⟩)) → 𝑋 = 𝑌)
58	57	expr 457	. . . . . . . 8 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ ((𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩))) → (𝑌 Btwn ⟨𝐴, 𝑋⟩ → 𝑋 = 𝑌))
59		simprrl 779	. . . . . . . . . 10 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ ((𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩))) → 𝑅 ≠ 𝐴)
60	59	necomd 2996	. . . . . . . . 9 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ ((𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩))) → 𝐴 ≠ 𝑅)
61		simprll 777	. . . . . . . . 9 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ ((𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩))) → 𝑅 Btwn ⟨𝐴, 𝑋⟩)
62		simprlr 778	. . . . . . . . 9 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ ((𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩))) → 𝑅 Btwn ⟨𝐴, 𝑌⟩)
63		btwnconn1 35068	. . . . . . . . . . 11 ⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁)) ∧ (𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) → ((𝐴 ≠ 𝑅 ∧ 𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) → (𝑋 Btwn ⟨𝐴, 𝑌⟩ ∨ 𝑌 Btwn ⟨𝐴, 𝑋⟩)))
64	1, 2, 4, 3, 8, 63	syl122anc 1379	. . . . . . . . . 10 ⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) → ((𝐴 ≠ 𝑅 ∧ 𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) → (𝑋 Btwn ⟨𝐴, 𝑌⟩ ∨ 𝑌 Btwn ⟨𝐴, 𝑋⟩)))
65	64	adantr 481	. . . . . . . . 9 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ ((𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩))) → ((𝐴 ≠ 𝑅 ∧ 𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) → (𝑋 Btwn ⟨𝐴, 𝑌⟩ ∨ 𝑌 Btwn ⟨𝐴, 𝑋⟩)))
66	60, 61, 62, 65	mp3and 1464	. . . . . . . 8 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ ((𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩))) → (𝑋 Btwn ⟨𝐴, 𝑌⟩ ∨ 𝑌 Btwn ⟨𝐴, 𝑋⟩))
67	53, 58, 66	mpjaod 858	. . . . . . 7 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ ((𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩))) → 𝑋 = 𝑌)
68	67	exp32 421	. . . . . 6 ⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) → ((𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) → ((𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩) → 𝑋 = 𝑌)))
69	32, 38, 46, 68	ccased 1037	. . . . 5 ⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) → (((𝑋 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑋⟩) ∧ (𝑌 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑌⟩)) → ((𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩) → 𝑋 = 𝑌)))
70	69	imp32 419	. . . 4 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ (((𝑋 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑋⟩) ∧ (𝑌 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑌⟩)) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩))) → 𝑋 = 𝑌)
71	24, 70	syldan 591	. . 3 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ (((𝑋 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑋 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑋⟩)) ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐵, 𝐶⟩) ∧ ((𝑌 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑌 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑌⟩)) ∧ ⟨𝐴, 𝑌⟩Cgr⟨𝐵, 𝐶⟩))) → 𝑋 = 𝑌)
72	71	ex 413	. 2 ⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) → ((((𝑋 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑋 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑋⟩)) ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐵, 𝐶⟩) ∧ ((𝑌 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑌 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑌⟩)) ∧ ⟨𝐴, 𝑌⟩Cgr⟨𝐵, 𝐶⟩)) → 𝑋 = 𝑌))
73	12, 72	sylbid 239	1 ⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) → (((𝐴OutsideOf⟨𝑋, 𝑅⟩ ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐵, 𝐶⟩) ∧ (𝐴OutsideOf⟨𝑌, 𝑅⟩ ∧ ⟨𝐴, 𝑌⟩Cgr⟨𝐵, 𝐶⟩)) → 𝑋 = 𝑌))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ↔ wb 205 ∧ wa 396 ∨ wo 845 ∧ w3a 1087 = wceq 1541 ∈ wcel 2106 ≠ wne 2940 ⟨cop 4634 class class class wbr 5148 ‘cfv 6543 ℕcn 12211 𝔼cee 28143 Btwn cbtwn 28144 Cgrccgr 28145 OutsideOfcoutsideof 35086

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2703 ax-rep 5285 ax-sep 5299 ax-nul 5306 ax-pow 5363 ax-pr 5427 ax-un 7724 ax-inf2 9635 ax-cnex 11165 ax-resscn 11166 ax-1cn 11167 ax-icn 11168 ax-addcl 11169 ax-addrcl 11170 ax-mulcl 11171 ax-mulrcl 11172 ax-mulcom 11173 ax-addass 11174 ax-mulass 11175 ax-distr 11176 ax-i2m1 11177 ax-1ne0 11178 ax-1rid 11179 ax-rnegex 11180 ax-rrecex 11181 ax-cnre 11182 ax-pre-lttri 11183 ax-pre-lttrn 11184 ax-pre-ltadd 11185 ax-pre-mulgt0 11186 ax-pre-sup 11187

This theorem depends on definitions: df-bi 206 df-an 397 df-or 846 df-3or 1088 df-3an 1089 df-tru 1544 df-fal 1554 df-ex 1782 df-nf 1786 df-sb 2068 df-mo 2534 df-eu 2563 df-clab 2710 df-cleq 2724 df-clel 2810 df-nfc 2885 df-ne 2941 df-nel 3047 df-ral 3062 df-rex 3071 df-rmo 3376 df-reu 3377 df-rab 3433 df-v 3476 df-sbc 3778 df-csb 3894 df-dif 3951 df-un 3953 df-in 3955 df-ss 3965 df-pss 3967 df-nul 4323 df-if 4529 df-pw 4604 df-sn 4629 df-pr 4631 df-op 4635 df-uni 4909 df-int 4951 df-iun 4999 df-br 5149 df-opab 5211 df-mpt 5232 df-tr 5266 df-id 5574 df-eprel 5580 df-po 5588 df-so 5589 df-fr 5631 df-se 5632 df-we 5633 df-xp 5682 df-rel 5683 df-cnv 5684 df-co 5685 df-dm 5686 df-rn 5687 df-res 5688 df-ima 5689 df-pred 6300 df-ord 6367 df-on 6368 df-lim 6369 df-suc 6370 df-iota 6495 df-fun 6545 df-fn 6546 df-f 6547 df-f1 6548 df-fo 6549 df-f1o 6550 df-fv 6551 df-isom 6552 df-riota 7364 df-ov 7411 df-oprab 7412 df-mpo 7413 df-om 7855 df-1st 7974 df-2nd 7975 df-frecs 8265 df-wrecs 8296 df-recs 8370 df-rdg 8409 df-1o 8465 df-er 8702 df-map 8821 df-en 8939 df-dom 8940 df-sdom 8941 df-fin 8942 df-sup 9436 df-oi 9504 df-card 9933 df-pnf 11249 df-mnf 11250 df-xr 11251 df-ltxr 11252 df-le 11253 df-sub 11445 df-neg 11446 df-div 11871 df-nn 12212 df-2 12274 df-3 12275 df-n0 12472 df-z 12558 df-uz 12822 df-rp 12974 df-ico 13329 df-icc 13330 df-fz 13484 df-fzo 13627 df-seq 13966 df-exp 14027 df-hash 14290 df-cj 15045 df-re 15046 df-im 15047 df-sqrt 15181 df-abs 15182 df-clim 15431 df-sum 15632 df-ee 28146 df-btwn 28147 df-cgr 28148 df-ofs 34950 df-colinear 35006 df-ifs 35007 df-cgr3 35008 df-fs 35009 df-outsideof 35087

This theorem is referenced by: outsideofeu 35098 outsidele 35099

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