lineelsb2 - Mathbox for Scott Fenton

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Theorem lineelsb2 33220

Description: If 𝑆 lies on 𝑃𝑄, then 𝑃𝑄 = 𝑃𝑆. Theorem 6.16 of [Schwabhauser] p. 45. (Contributed by Scott Fenton, 27-Oct-2013.) (Revised by Mario Carneiro, 19-Apr-2014.)

**Assertion**
Ref	Expression
lineelsb2	⊢ ((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) → (𝑆 ∈ (𝑃Line𝑄) → (𝑃Line𝑄) = (𝑃Line𝑆)))

Proof of Theorem lineelsb2 Dummy variable 𝑥 is distinct from all other variables.

Step	Hyp	Ref	Expression
1		simpl1 1184	. . . . . . . . 9 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → 𝑁 ∈ ℕ)
2		simpl3l 1221	. . . . . . . . 9 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → 𝑆 ∈ (𝔼‘𝑁))
3		simpl21 1244	. . . . . . . . 9 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → 𝑃 ∈ (𝔼‘𝑁))
4		simpl22 1245	. . . . . . . . 9 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → 𝑄 ∈ (𝔼‘𝑁))
5		brcolinear 33131	. . . . . . . . 9 ⊢ ((𝑁 ∈ ℕ ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁))) → (𝑆 Colinear ⟨𝑃, 𝑄⟩ ↔ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∨ 𝑃 Btwn ⟨𝑄, 𝑆⟩ ∨ 𝑄 Btwn ⟨𝑆, 𝑃⟩)))
6	1, 2, 3, 4, 5	syl13anc 1365	. . . . . . . 8 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → (𝑆 Colinear ⟨𝑃, 𝑄⟩ ↔ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∨ 𝑃 Btwn ⟨𝑄, 𝑆⟩ ∨ 𝑄 Btwn ⟨𝑆, 𝑃⟩)))
7	6	biimpa 477	. . . . . . 7 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑆 Colinear ⟨𝑃, 𝑄⟩) → (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∨ 𝑃 Btwn ⟨𝑄, 𝑆⟩ ∨ 𝑄 Btwn ⟨𝑆, 𝑃⟩))
8		simpr 485	. . . . . . . . . . . 12 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → 𝑥 ∈ (𝔼‘𝑁))
9		brcolinear 33131	. . . . . . . . . . . 12 ⊢ ((𝑁 ∈ ℕ ∧ (𝑥 ∈ (𝔼‘𝑁) ∧ 𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁))) → (𝑥 Colinear ⟨𝑃, 𝑄⟩ ↔ (𝑥 Btwn ⟨𝑃, 𝑄⟩ ∨ 𝑃 Btwn ⟨𝑄, 𝑥⟩ ∨ 𝑄 Btwn ⟨𝑥, 𝑃⟩)))
10	1, 8, 3, 4, 9	syl13anc 1365	. . . . . . . . . . 11 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → (𝑥 Colinear ⟨𝑃, 𝑄⟩ ↔ (𝑥 Btwn ⟨𝑃, 𝑄⟩ ∨ 𝑃 Btwn ⟨𝑄, 𝑥⟩ ∨ 𝑄 Btwn ⟨𝑥, 𝑃⟩)))
11	10	adantr 481	. . . . . . . . . 10 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑆 Btwn ⟨𝑃, 𝑄⟩) → (𝑥 Colinear ⟨𝑃, 𝑄⟩ ↔ (𝑥 Btwn ⟨𝑃, 𝑄⟩ ∨ 𝑃 Btwn ⟨𝑄, 𝑥⟩ ∨ 𝑄 Btwn ⟨𝑥, 𝑃⟩)))
12		btwnconn3 33175	. . . . . . . . . . . . . . 15 ⊢ ((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑆 ∈ (𝔼‘𝑁)) ∧ (𝑥 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁))) → ((𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑄⟩) → (𝑆 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑆⟩)))
13	1, 3, 2, 8, 4, 12	syl122anc 1372	. . . . . . . . . . . . . 14 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → ((𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑄⟩) → (𝑆 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑆⟩)))
14	13	imp 407	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑄⟩)) → (𝑆 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑆⟩))
15		btwncolinear3 33143	. . . . . . . . . . . . . . . 16 ⊢ ((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑥 ∈ (𝔼‘𝑁) ∧ 𝑆 ∈ (𝔼‘𝑁))) → (𝑆 Btwn ⟨𝑃, 𝑥⟩ → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
16	1, 3, 8, 2, 15	syl13anc 1365	. . . . . . . . . . . . . . 15 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → (𝑆 Btwn ⟨𝑃, 𝑥⟩ → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
17		btwncolinear5 33145	. . . . . . . . . . . . . . . 16 ⊢ ((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑆 ∈ (𝔼‘𝑁) ∧ 𝑥 ∈ (𝔼‘𝑁))) → (𝑥 Btwn ⟨𝑃, 𝑆⟩ → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
18	1, 3, 2, 8, 17	syl13anc 1365	. . . . . . . . . . . . . . 15 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → (𝑥 Btwn ⟨𝑃, 𝑆⟩ → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
19	16, 18	jaod 854	. . . . . . . . . . . . . 14 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → ((𝑆 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑆⟩) → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
20	19	adantr 481	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑄⟩)) → ((𝑆 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑆⟩) → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
21	14, 20	mpd 15	. . . . . . . . . . . 12 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑄⟩)) → 𝑥 Colinear ⟨𝑃, 𝑆⟩)
22	21	expr 457	. . . . . . . . . . 11 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑆 Btwn ⟨𝑃, 𝑄⟩) → (𝑥 Btwn ⟨𝑃, 𝑄⟩ → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
23		simprl 767	. . . . . . . . . . . . . . 15 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑃 Btwn ⟨𝑄, 𝑥⟩)) → 𝑆 Btwn ⟨𝑃, 𝑄⟩)
24	1, 2, 3, 4, 23	btwncomand 33087	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑃 Btwn ⟨𝑄, 𝑥⟩)) → 𝑆 Btwn ⟨𝑄, 𝑃⟩)
25		simprr 769	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑃 Btwn ⟨𝑄, 𝑥⟩)) → 𝑃 Btwn ⟨𝑄, 𝑥⟩)
26	1, 4, 2, 3, 8, 24, 25	btwnexch3and 33093	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑃 Btwn ⟨𝑄, 𝑥⟩)) → 𝑃 Btwn ⟨𝑆, 𝑥⟩)
27		btwncolinear4 33144	. . . . . . . . . . . . . . 15 ⊢ ((𝑁 ∈ ℕ ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑥 ∈ (𝔼‘𝑁) ∧ 𝑃 ∈ (𝔼‘𝑁))) → (𝑃 Btwn ⟨𝑆, 𝑥⟩ → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
28	1, 2, 8, 3, 27	syl13anc 1365	. . . . . . . . . . . . . 14 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → (𝑃 Btwn ⟨𝑆, 𝑥⟩ → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
29	28	adantr 481	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑃 Btwn ⟨𝑄, 𝑥⟩)) → (𝑃 Btwn ⟨𝑆, 𝑥⟩ → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
30	26, 29	mpd 15	. . . . . . . . . . . 12 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑃 Btwn ⟨𝑄, 𝑥⟩)) → 𝑥 Colinear ⟨𝑃, 𝑆⟩)
31	30	expr 457	. . . . . . . . . . 11 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑆 Btwn ⟨𝑃, 𝑄⟩) → (𝑃 Btwn ⟨𝑄, 𝑥⟩ → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
32		simprl 767	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑄 Btwn ⟨𝑥, 𝑃⟩)) → 𝑆 Btwn ⟨𝑃, 𝑄⟩)
33		simprr 769	. . . . . . . . . . . . . . 15 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑄 Btwn ⟨𝑥, 𝑃⟩)) → 𝑄 Btwn ⟨𝑥, 𝑃⟩)
34	1, 4, 8, 3, 33	btwncomand 33087	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑄 Btwn ⟨𝑥, 𝑃⟩)) → 𝑄 Btwn ⟨𝑃, 𝑥⟩)
35	1, 3, 2, 4, 8, 32, 34	btwnexchand 33098	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑄 Btwn ⟨𝑥, 𝑃⟩)) → 𝑆 Btwn ⟨𝑃, 𝑥⟩)
36	16	adantr 481	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑄 Btwn ⟨𝑥, 𝑃⟩)) → (𝑆 Btwn ⟨𝑃, 𝑥⟩ → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
37	35, 36	mpd 15	. . . . . . . . . . . 12 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑄 Btwn ⟨𝑥, 𝑃⟩)) → 𝑥 Colinear ⟨𝑃, 𝑆⟩)
38	37	expr 457	. . . . . . . . . . 11 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑆 Btwn ⟨𝑃, 𝑄⟩) → (𝑄 Btwn ⟨𝑥, 𝑃⟩ → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
39	22, 31, 38	3jaod 1421	. . . . . . . . . 10 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑆 Btwn ⟨𝑃, 𝑄⟩) → ((𝑥 Btwn ⟨𝑃, 𝑄⟩ ∨ 𝑃 Btwn ⟨𝑄, 𝑥⟩ ∨ 𝑄 Btwn ⟨𝑥, 𝑃⟩) → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
40	11, 39	sylbid 241	. . . . . . . . 9 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑆 Btwn ⟨𝑃, 𝑄⟩) → (𝑥 Colinear ⟨𝑃, 𝑄⟩ → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
41		brcolinear 33131	. . . . . . . . . . . 12 ⊢ ((𝑁 ∈ ℕ ∧ (𝑥 ∈ (𝔼‘𝑁) ∧ 𝑃 ∈ (𝔼‘𝑁) ∧ 𝑆 ∈ (𝔼‘𝑁))) → (𝑥 Colinear ⟨𝑃, 𝑆⟩ ↔ (𝑥 Btwn ⟨𝑃, 𝑆⟩ ∨ 𝑃 Btwn ⟨𝑆, 𝑥⟩ ∨ 𝑆 Btwn ⟨𝑥, 𝑃⟩)))
42	1, 8, 3, 2, 41	syl13anc 1365	. . . . . . . . . . 11 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → (𝑥 Colinear ⟨𝑃, 𝑆⟩ ↔ (𝑥 Btwn ⟨𝑃, 𝑆⟩ ∨ 𝑃 Btwn ⟨𝑆, 𝑥⟩ ∨ 𝑆 Btwn ⟨𝑥, 𝑃⟩)))
43	42	adantr 481	. . . . . . . . . 10 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑆 Btwn ⟨𝑃, 𝑄⟩) → (𝑥 Colinear ⟨𝑃, 𝑆⟩ ↔ (𝑥 Btwn ⟨𝑃, 𝑆⟩ ∨ 𝑃 Btwn ⟨𝑆, 𝑥⟩ ∨ 𝑆 Btwn ⟨𝑥, 𝑃⟩)))
44		simprr 769	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑆⟩)) → 𝑥 Btwn ⟨𝑃, 𝑆⟩)
45		simprl 767	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑆⟩)) → 𝑆 Btwn ⟨𝑃, 𝑄⟩)
46	1, 3, 8, 2, 4, 44, 45	btwnexchand 33098	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑆⟩)) → 𝑥 Btwn ⟨𝑃, 𝑄⟩)
47		btwncolinear5 33145	. . . . . . . . . . . . . . 15 ⊢ ((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑥 ∈ (𝔼‘𝑁))) → (𝑥 Btwn ⟨𝑃, 𝑄⟩ → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
48	1, 3, 4, 8, 47	syl13anc 1365	. . . . . . . . . . . . . 14 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → (𝑥 Btwn ⟨𝑃, 𝑄⟩ → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
49	48	adantr 481	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑆⟩)) → (𝑥 Btwn ⟨𝑃, 𝑄⟩ → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
50	46, 49	mpd 15	. . . . . . . . . . . 12 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑆⟩)) → 𝑥 Colinear ⟨𝑃, 𝑄⟩)
51	50	expr 457	. . . . . . . . . . 11 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑆 Btwn ⟨𝑃, 𝑄⟩) → (𝑥 Btwn ⟨𝑃, 𝑆⟩ → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
52		simpl3r 1222	. . . . . . . . . . . . . . . 16 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → 𝑃 ≠ 𝑆)
53	52	necomd 3041	. . . . . . . . . . . . . . 15 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → 𝑆 ≠ 𝑃)
54	53	adantr 481	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑃 Btwn ⟨𝑆, 𝑥⟩)) → 𝑆 ≠ 𝑃)
55		simprl 767	. . . . . . . . . . . . . . 15 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑃 Btwn ⟨𝑆, 𝑥⟩)) → 𝑆 Btwn ⟨𝑃, 𝑄⟩)
56	1, 2, 3, 4, 55	btwncomand 33087	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑃 Btwn ⟨𝑆, 𝑥⟩)) → 𝑆 Btwn ⟨𝑄, 𝑃⟩)
57		simprr 769	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑃 Btwn ⟨𝑆, 𝑥⟩)) → 𝑃 Btwn ⟨𝑆, 𝑥⟩)
58		btwnouttr2 33094	. . . . . . . . . . . . . . . 16 ⊢ ((𝑁 ∈ ℕ ∧ (𝑄 ∈ (𝔼‘𝑁) ∧ 𝑆 ∈ (𝔼‘𝑁)) ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑥 ∈ (𝔼‘𝑁))) → ((𝑆 ≠ 𝑃 ∧ 𝑆 Btwn ⟨𝑄, 𝑃⟩ ∧ 𝑃 Btwn ⟨𝑆, 𝑥⟩) → 𝑃 Btwn ⟨𝑄, 𝑥⟩))
59	1, 4, 2, 3, 8, 58	syl122anc 1372	. . . . . . . . . . . . . . 15 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → ((𝑆 ≠ 𝑃 ∧ 𝑆 Btwn ⟨𝑄, 𝑃⟩ ∧ 𝑃 Btwn ⟨𝑆, 𝑥⟩) → 𝑃 Btwn ⟨𝑄, 𝑥⟩))
60	59	adantr 481	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑃 Btwn ⟨𝑆, 𝑥⟩)) → ((𝑆 ≠ 𝑃 ∧ 𝑆 Btwn ⟨𝑄, 𝑃⟩ ∧ 𝑃 Btwn ⟨𝑆, 𝑥⟩) → 𝑃 Btwn ⟨𝑄, 𝑥⟩))
61	54, 56, 57, 60	mp3and 1456	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑃 Btwn ⟨𝑆, 𝑥⟩)) → 𝑃 Btwn ⟨𝑄, 𝑥⟩)
62		btwncolinear4 33144	. . . . . . . . . . . . . . 15 ⊢ ((𝑁 ∈ ℕ ∧ (𝑄 ∈ (𝔼‘𝑁) ∧ 𝑥 ∈ (𝔼‘𝑁) ∧ 𝑃 ∈ (𝔼‘𝑁))) → (𝑃 Btwn ⟨𝑄, 𝑥⟩ → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
63	1, 4, 8, 3, 62	syl13anc 1365	. . . . . . . . . . . . . 14 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → (𝑃 Btwn ⟨𝑄, 𝑥⟩ → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
64	63	adantr 481	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑃 Btwn ⟨𝑆, 𝑥⟩)) → (𝑃 Btwn ⟨𝑄, 𝑥⟩ → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
65	61, 64	mpd 15	. . . . . . . . . . . 12 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑃 Btwn ⟨𝑆, 𝑥⟩)) → 𝑥 Colinear ⟨𝑃, 𝑄⟩)
66	65	expr 457	. . . . . . . . . . 11 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑆 Btwn ⟨𝑃, 𝑄⟩) → (𝑃 Btwn ⟨𝑆, 𝑥⟩ → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
67	52	adantr 481	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑆 Btwn ⟨𝑥, 𝑃⟩)) → 𝑃 ≠ 𝑆)
68		simprl 767	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑆 Btwn ⟨𝑥, 𝑃⟩)) → 𝑆 Btwn ⟨𝑃, 𝑄⟩)
69		simprr 769	. . . . . . . . . . . . . . 15 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑆 Btwn ⟨𝑥, 𝑃⟩)) → 𝑆 Btwn ⟨𝑥, 𝑃⟩)
70	1, 2, 8, 3, 69	btwncomand 33087	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑆 Btwn ⟨𝑥, 𝑃⟩)) → 𝑆 Btwn ⟨𝑃, 𝑥⟩)
71		btwnconn1 33173	. . . . . . . . . . . . . . . 16 ⊢ ((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑆 ∈ (𝔼‘𝑁)) ∧ (𝑄 ∈ (𝔼‘𝑁) ∧ 𝑥 ∈ (𝔼‘𝑁))) → ((𝑃 ≠ 𝑆 ∧ 𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑆 Btwn ⟨𝑃, 𝑥⟩) → (𝑄 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑄⟩)))
72	1, 3, 2, 4, 8, 71	syl122anc 1372	. . . . . . . . . . . . . . 15 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → ((𝑃 ≠ 𝑆 ∧ 𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑆 Btwn ⟨𝑃, 𝑥⟩) → (𝑄 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑄⟩)))
73	72	adantr 481	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑆 Btwn ⟨𝑥, 𝑃⟩)) → ((𝑃 ≠ 𝑆 ∧ 𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑆 Btwn ⟨𝑃, 𝑥⟩) → (𝑄 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑄⟩)))
74	67, 68, 70, 73	mp3and 1456	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑆 Btwn ⟨𝑥, 𝑃⟩)) → (𝑄 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑄⟩))
75		btwncolinear3 33143	. . . . . . . . . . . . . . . 16 ⊢ ((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑥 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁))) → (𝑄 Btwn ⟨𝑃, 𝑥⟩ → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
76	1, 3, 8, 4, 75	syl13anc 1365	. . . . . . . . . . . . . . 15 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → (𝑄 Btwn ⟨𝑃, 𝑥⟩ → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
77	76, 48	jaod 854	. . . . . . . . . . . . . 14 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → ((𝑄 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑄⟩) → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
78	77	adantr 481	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑆 Btwn ⟨𝑥, 𝑃⟩)) → ((𝑄 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑄⟩) → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
79	74, 78	mpd 15	. . . . . . . . . . . 12 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑆 Btwn ⟨𝑥, 𝑃⟩)) → 𝑥 Colinear ⟨𝑃, 𝑄⟩)
80	79	expr 457	. . . . . . . . . . 11 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑆 Btwn ⟨𝑃, 𝑄⟩) → (𝑆 Btwn ⟨𝑥, 𝑃⟩ → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
81	51, 66, 80	3jaod 1421	. . . . . . . . . 10 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑆 Btwn ⟨𝑃, 𝑄⟩) → ((𝑥 Btwn ⟨𝑃, 𝑆⟩ ∨ 𝑃 Btwn ⟨𝑆, 𝑥⟩ ∨ 𝑆 Btwn ⟨𝑥, 𝑃⟩) → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
82	43, 81	sylbid 241	. . . . . . . . 9 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑆 Btwn ⟨𝑃, 𝑄⟩) → (𝑥 Colinear ⟨𝑃, 𝑆⟩ → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
83	40, 82	impbid 213	. . . . . . . 8 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑆 Btwn ⟨𝑃, 𝑄⟩) → (𝑥 Colinear ⟨𝑃, 𝑄⟩ ↔ 𝑥 Colinear ⟨𝑃, 𝑆⟩))
84	10	adantr 481	. . . . . . . . . 10 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑃 Btwn ⟨𝑄, 𝑆⟩) → (𝑥 Colinear ⟨𝑃, 𝑄⟩ ↔ (𝑥 Btwn ⟨𝑃, 𝑄⟩ ∨ 𝑃 Btwn ⟨𝑄, 𝑥⟩ ∨ 𝑄 Btwn ⟨𝑥, 𝑃⟩)))
85		simprr 769	. . . . . . . . . . . . . . 15 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑄⟩)) → 𝑥 Btwn ⟨𝑃, 𝑄⟩)
86	1, 8, 3, 4, 85	btwncomand 33087	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑄⟩)) → 𝑥 Btwn ⟨𝑄, 𝑃⟩)
87		simprl 767	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑄⟩)) → 𝑃 Btwn ⟨𝑄, 𝑆⟩)
88	1, 4, 8, 3, 2, 86, 87	btwnexch3and 33093	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑄⟩)) → 𝑃 Btwn ⟨𝑥, 𝑆⟩)
89		btwncolinear2 33142	. . . . . . . . . . . . . . 15 ⊢ ((𝑁 ∈ ℕ ∧ (𝑥 ∈ (𝔼‘𝑁) ∧ 𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ∈ (𝔼‘𝑁))) → (𝑃 Btwn ⟨𝑥, 𝑆⟩ → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
90	1, 8, 2, 3, 89	syl13anc 1365	. . . . . . . . . . . . . 14 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → (𝑃 Btwn ⟨𝑥, 𝑆⟩ → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
91	90	adantr 481	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑄⟩)) → (𝑃 Btwn ⟨𝑥, 𝑆⟩ → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
92	88, 91	mpd 15	. . . . . . . . . . . 12 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑄⟩)) → 𝑥 Colinear ⟨𝑃, 𝑆⟩)
93	92	expr 457	. . . . . . . . . . 11 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑃 Btwn ⟨𝑄, 𝑆⟩) → (𝑥 Btwn ⟨𝑃, 𝑄⟩ → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
94		simpl23 1246	. . . . . . . . . . . . . . . 16 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → 𝑃 ≠ 𝑄)
95	94	necomd 3041	. . . . . . . . . . . . . . 15 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → 𝑄 ≠ 𝑃)
96	95	adantr 481	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑃 Btwn ⟨𝑄, 𝑥⟩)) → 𝑄 ≠ 𝑃)
97		simprl 767	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑃 Btwn ⟨𝑄, 𝑥⟩)) → 𝑃 Btwn ⟨𝑄, 𝑆⟩)
98		simprr 769	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑃 Btwn ⟨𝑄, 𝑥⟩)) → 𝑃 Btwn ⟨𝑄, 𝑥⟩)
99		btwnconn2 33174	. . . . . . . . . . . . . . . 16 ⊢ ((𝑁 ∈ ℕ ∧ (𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ∈ (𝔼‘𝑁)) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑥 ∈ (𝔼‘𝑁))) → ((𝑄 ≠ 𝑃 ∧ 𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑃 Btwn ⟨𝑄, 𝑥⟩) → (𝑆 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑆⟩)))
100	1, 4, 3, 2, 8, 99	syl122anc 1372	. . . . . . . . . . . . . . 15 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → ((𝑄 ≠ 𝑃 ∧ 𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑃 Btwn ⟨𝑄, 𝑥⟩) → (𝑆 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑆⟩)))
101	100	adantr 481	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑃 Btwn ⟨𝑄, 𝑥⟩)) → ((𝑄 ≠ 𝑃 ∧ 𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑃 Btwn ⟨𝑄, 𝑥⟩) → (𝑆 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑆⟩)))
102	96, 97, 98, 101	mp3and 1456	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑃 Btwn ⟨𝑄, 𝑥⟩)) → (𝑆 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑆⟩))
103	19	adantr 481	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑃 Btwn ⟨𝑄, 𝑥⟩)) → ((𝑆 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑆⟩) → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
104	102, 103	mpd 15	. . . . . . . . . . . 12 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑃 Btwn ⟨𝑄, 𝑥⟩)) → 𝑥 Colinear ⟨𝑃, 𝑆⟩)
105	104	expr 457	. . . . . . . . . . 11 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑃 Btwn ⟨𝑄, 𝑆⟩) → (𝑃 Btwn ⟨𝑄, 𝑥⟩ → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
106	94	adantr 481	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑄 Btwn ⟨𝑥, 𝑃⟩)) → 𝑃 ≠ 𝑄)
107		simprl 767	. . . . . . . . . . . . . . 15 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑄 Btwn ⟨𝑥, 𝑃⟩)) → 𝑃 Btwn ⟨𝑄, 𝑆⟩)
108	1, 3, 4, 2, 107	btwncomand 33087	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑄 Btwn ⟨𝑥, 𝑃⟩)) → 𝑃 Btwn ⟨𝑆, 𝑄⟩)
109		simprr 769	. . . . . . . . . . . . . . 15 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑄 Btwn ⟨𝑥, 𝑃⟩)) → 𝑄 Btwn ⟨𝑥, 𝑃⟩)
110	1, 4, 8, 3, 109	btwncomand 33087	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑄 Btwn ⟨𝑥, 𝑃⟩)) → 𝑄 Btwn ⟨𝑃, 𝑥⟩)
111		btwnouttr 33096	. . . . . . . . . . . . . . . 16 ⊢ ((𝑁 ∈ ℕ ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ∈ (𝔼‘𝑁)) ∧ (𝑄 ∈ (𝔼‘𝑁) ∧ 𝑥 ∈ (𝔼‘𝑁))) → ((𝑃 ≠ 𝑄 ∧ 𝑃 Btwn ⟨𝑆, 𝑄⟩ ∧ 𝑄 Btwn ⟨𝑃, 𝑥⟩) → 𝑃 Btwn ⟨𝑆, 𝑥⟩))
112	1, 2, 3, 4, 8, 111	syl122anc 1372	. . . . . . . . . . . . . . 15 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → ((𝑃 ≠ 𝑄 ∧ 𝑃 Btwn ⟨𝑆, 𝑄⟩ ∧ 𝑄 Btwn ⟨𝑃, 𝑥⟩) → 𝑃 Btwn ⟨𝑆, 𝑥⟩))
113	112	adantr 481	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑄 Btwn ⟨𝑥, 𝑃⟩)) → ((𝑃 ≠ 𝑄 ∧ 𝑃 Btwn ⟨𝑆, 𝑄⟩ ∧ 𝑄 Btwn ⟨𝑃, 𝑥⟩) → 𝑃 Btwn ⟨𝑆, 𝑥⟩))
114	106, 108, 110, 113	mp3and 1456	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑄 Btwn ⟨𝑥, 𝑃⟩)) → 𝑃 Btwn ⟨𝑆, 𝑥⟩)
115	28	adantr 481	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑄 Btwn ⟨𝑥, 𝑃⟩)) → (𝑃 Btwn ⟨𝑆, 𝑥⟩ → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
116	114, 115	mpd 15	. . . . . . . . . . . 12 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑄 Btwn ⟨𝑥, 𝑃⟩)) → 𝑥 Colinear ⟨𝑃, 𝑆⟩)
117	116	expr 457	. . . . . . . . . . 11 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑃 Btwn ⟨𝑄, 𝑆⟩) → (𝑄 Btwn ⟨𝑥, 𝑃⟩ → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
118	93, 105, 117	3jaod 1421	. . . . . . . . . 10 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑃 Btwn ⟨𝑄, 𝑆⟩) → ((𝑥 Btwn ⟨𝑃, 𝑄⟩ ∨ 𝑃 Btwn ⟨𝑄, 𝑥⟩ ∨ 𝑄 Btwn ⟨𝑥, 𝑃⟩) → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
119	84, 118	sylbid 241	. . . . . . . . 9 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑃 Btwn ⟨𝑄, 𝑆⟩) → (𝑥 Colinear ⟨𝑃, 𝑄⟩ → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
120	42	adantr 481	. . . . . . . . . 10 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑃 Btwn ⟨𝑄, 𝑆⟩) → (𝑥 Colinear ⟨𝑃, 𝑆⟩ ↔ (𝑥 Btwn ⟨𝑃, 𝑆⟩ ∨ 𝑃 Btwn ⟨𝑆, 𝑥⟩ ∨ 𝑆 Btwn ⟨𝑥, 𝑃⟩)))
121		simprr 769	. . . . . . . . . . . . . . 15 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑆⟩)) → 𝑥 Btwn ⟨𝑃, 𝑆⟩)
122	1, 8, 3, 2, 121	btwncomand 33087	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑆⟩)) → 𝑥 Btwn ⟨𝑆, 𝑃⟩)
123		simprl 767	. . . . . . . . . . . . . . 15 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑆⟩)) → 𝑃 Btwn ⟨𝑄, 𝑆⟩)
124	1, 3, 4, 2, 123	btwncomand 33087	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑆⟩)) → 𝑃 Btwn ⟨𝑆, 𝑄⟩)
125	1, 2, 8, 3, 4, 122, 124	btwnexch3and 33093	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑆⟩)) → 𝑃 Btwn ⟨𝑥, 𝑄⟩)
126		btwncolinear2 33142	. . . . . . . . . . . . . . 15 ⊢ ((𝑁 ∈ ℕ ∧ (𝑥 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ∈ (𝔼‘𝑁))) → (𝑃 Btwn ⟨𝑥, 𝑄⟩ → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
127	1, 8, 4, 3, 126	syl13anc 1365	. . . . . . . . . . . . . 14 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → (𝑃 Btwn ⟨𝑥, 𝑄⟩ → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
128	127	adantr 481	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑆⟩)) → (𝑃 Btwn ⟨𝑥, 𝑄⟩ → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
129	125, 128	mpd 15	. . . . . . . . . . . 12 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑆⟩)) → 𝑥 Colinear ⟨𝑃, 𝑄⟩)
130	129	expr 457	. . . . . . . . . . 11 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑃 Btwn ⟨𝑄, 𝑆⟩) → (𝑥 Btwn ⟨𝑃, 𝑆⟩ → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
131	53	adantr 481	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑃 Btwn ⟨𝑆, 𝑥⟩)) → 𝑆 ≠ 𝑃)
132		simprl 767	. . . . . . . . . . . . . . 15 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑃 Btwn ⟨𝑆, 𝑥⟩)) → 𝑃 Btwn ⟨𝑄, 𝑆⟩)
133	1, 3, 4, 2, 132	btwncomand 33087	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑃 Btwn ⟨𝑆, 𝑥⟩)) → 𝑃 Btwn ⟨𝑆, 𝑄⟩)
134		simprr 769	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑃 Btwn ⟨𝑆, 𝑥⟩)) → 𝑃 Btwn ⟨𝑆, 𝑥⟩)
135		btwnconn2 33174	. . . . . . . . . . . . . . . 16 ⊢ ((𝑁 ∈ ℕ ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ∈ (𝔼‘𝑁)) ∧ (𝑄 ∈ (𝔼‘𝑁) ∧ 𝑥 ∈ (𝔼‘𝑁))) → ((𝑆 ≠ 𝑃 ∧ 𝑃 Btwn ⟨𝑆, 𝑄⟩ ∧ 𝑃 Btwn ⟨𝑆, 𝑥⟩) → (𝑄 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑄⟩)))
136	1, 2, 3, 4, 8, 135	syl122anc 1372	. . . . . . . . . . . . . . 15 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → ((𝑆 ≠ 𝑃 ∧ 𝑃 Btwn ⟨𝑆, 𝑄⟩ ∧ 𝑃 Btwn ⟨𝑆, 𝑥⟩) → (𝑄 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑄⟩)))
137	136	adantr 481	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑃 Btwn ⟨𝑆, 𝑥⟩)) → ((𝑆 ≠ 𝑃 ∧ 𝑃 Btwn ⟨𝑆, 𝑄⟩ ∧ 𝑃 Btwn ⟨𝑆, 𝑥⟩) → (𝑄 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑄⟩)))
138	131, 133, 134, 137	mp3and 1456	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑃 Btwn ⟨𝑆, 𝑥⟩)) → (𝑄 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑄⟩))
139	77	adantr 481	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑃 Btwn ⟨𝑆, 𝑥⟩)) → ((𝑄 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑄⟩) → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
140	138, 139	mpd 15	. . . . . . . . . . . 12 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑃 Btwn ⟨𝑆, 𝑥⟩)) → 𝑥 Colinear ⟨𝑃, 𝑄⟩)
141	140	expr 457	. . . . . . . . . . 11 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑃 Btwn ⟨𝑄, 𝑆⟩) → (𝑃 Btwn ⟨𝑆, 𝑥⟩ → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
142	52	adantr 481	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑆 Btwn ⟨𝑥, 𝑃⟩)) → 𝑃 ≠ 𝑆)
143		simprl 767	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑆 Btwn ⟨𝑥, 𝑃⟩)) → 𝑃 Btwn ⟨𝑄, 𝑆⟩)
144		simprr 769	. . . . . . . . . . . . . . 15 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑆 Btwn ⟨𝑥, 𝑃⟩)) → 𝑆 Btwn ⟨𝑥, 𝑃⟩)
145	1, 2, 8, 3, 144	btwncomand 33087	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑆 Btwn ⟨𝑥, 𝑃⟩)) → 𝑆 Btwn ⟨𝑃, 𝑥⟩)
146		btwnouttr 33096	. . . . . . . . . . . . . . . 16 ⊢ ((𝑁 ∈ ℕ ∧ (𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ∈ (𝔼‘𝑁)) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑥 ∈ (𝔼‘𝑁))) → ((𝑃 ≠ 𝑆 ∧ 𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑆 Btwn ⟨𝑃, 𝑥⟩) → 𝑃 Btwn ⟨𝑄, 𝑥⟩))
147	1, 4, 3, 2, 8, 146	syl122anc 1372	. . . . . . . . . . . . . . 15 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → ((𝑃 ≠ 𝑆 ∧ 𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑆 Btwn ⟨𝑃, 𝑥⟩) → 𝑃 Btwn ⟨𝑄, 𝑥⟩))
148	147	adantr 481	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑆 Btwn ⟨𝑥, 𝑃⟩)) → ((𝑃 ≠ 𝑆 ∧ 𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑆 Btwn ⟨𝑃, 𝑥⟩) → 𝑃 Btwn ⟨𝑄, 𝑥⟩))
149	142, 143, 145, 148	mp3and 1456	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑆 Btwn ⟨𝑥, 𝑃⟩)) → 𝑃 Btwn ⟨𝑄, 𝑥⟩)
150	63	adantr 481	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑆 Btwn ⟨𝑥, 𝑃⟩)) → (𝑃 Btwn ⟨𝑄, 𝑥⟩ → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
151	149, 150	mpd 15	. . . . . . . . . . . 12 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑆 Btwn ⟨𝑥, 𝑃⟩)) → 𝑥 Colinear ⟨𝑃, 𝑄⟩)
152	151	expr 457	. . . . . . . . . . 11 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑃 Btwn ⟨𝑄, 𝑆⟩) → (𝑆 Btwn ⟨𝑥, 𝑃⟩ → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
153	130, 141, 152	3jaod 1421	. . . . . . . . . 10 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑃 Btwn ⟨𝑄, 𝑆⟩) → ((𝑥 Btwn ⟨𝑃, 𝑆⟩ ∨ 𝑃 Btwn ⟨𝑆, 𝑥⟩ ∨ 𝑆 Btwn ⟨𝑥, 𝑃⟩) → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
154	120, 153	sylbid 241	. . . . . . . . 9 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑃 Btwn ⟨𝑄, 𝑆⟩) → (𝑥 Colinear ⟨𝑃, 𝑆⟩ → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
155	119, 154	impbid 213	. . . . . . . 8 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑃 Btwn ⟨𝑄, 𝑆⟩) → (𝑥 Colinear ⟨𝑃, 𝑄⟩ ↔ 𝑥 Colinear ⟨𝑃, 𝑆⟩))
156	10	adantr 481	. . . . . . . . . 10 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑄 Btwn ⟨𝑆, 𝑃⟩) → (𝑥 Colinear ⟨𝑃, 𝑄⟩ ↔ (𝑥 Btwn ⟨𝑃, 𝑄⟩ ∨ 𝑃 Btwn ⟨𝑄, 𝑥⟩ ∨ 𝑄 Btwn ⟨𝑥, 𝑃⟩)))
157		simprr 769	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑄⟩)) → 𝑥 Btwn ⟨𝑃, 𝑄⟩)
158		simprl 767	. . . . . . . . . . . . . . 15 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑄⟩)) → 𝑄 Btwn ⟨𝑆, 𝑃⟩)
159	1, 4, 2, 3, 158	btwncomand 33087	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑄⟩)) → 𝑄 Btwn ⟨𝑃, 𝑆⟩)
160	1, 3, 8, 4, 2, 157, 159	btwnexchand 33098	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑄⟩)) → 𝑥 Btwn ⟨𝑃, 𝑆⟩)
161	18	adantr 481	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑄⟩)) → (𝑥 Btwn ⟨𝑃, 𝑆⟩ → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
162	160, 161	mpd 15	. . . . . . . . . . . 12 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑄⟩)) → 𝑥 Colinear ⟨𝑃, 𝑆⟩)
163	162	expr 457	. . . . . . . . . . 11 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑄 Btwn ⟨𝑆, 𝑃⟩) → (𝑥 Btwn ⟨𝑃, 𝑄⟩ → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
164	95	adantr 481	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑃 Btwn ⟨𝑄, 𝑥⟩)) → 𝑄 ≠ 𝑃)
165		simprl 767	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑃 Btwn ⟨𝑄, 𝑥⟩)) → 𝑄 Btwn ⟨𝑆, 𝑃⟩)
166		simprr 769	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑃 Btwn ⟨𝑄, 𝑥⟩)) → 𝑃 Btwn ⟨𝑄, 𝑥⟩)
167		btwnouttr2 33094	. . . . . . . . . . . . . . . 16 ⊢ ((𝑁 ∈ ℕ ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁)) ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑥 ∈ (𝔼‘𝑁))) → ((𝑄 ≠ 𝑃 ∧ 𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑃 Btwn ⟨𝑄, 𝑥⟩) → 𝑃 Btwn ⟨𝑆, 𝑥⟩))
168	1, 2, 4, 3, 8, 167	syl122anc 1372	. . . . . . . . . . . . . . 15 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → ((𝑄 ≠ 𝑃 ∧ 𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑃 Btwn ⟨𝑄, 𝑥⟩) → 𝑃 Btwn ⟨𝑆, 𝑥⟩))
169	168	adantr 481	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑃 Btwn ⟨𝑄, 𝑥⟩)) → ((𝑄 ≠ 𝑃 ∧ 𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑃 Btwn ⟨𝑄, 𝑥⟩) → 𝑃 Btwn ⟨𝑆, 𝑥⟩))
170	164, 165, 166, 169	mp3and 1456	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑃 Btwn ⟨𝑄, 𝑥⟩)) → 𝑃 Btwn ⟨𝑆, 𝑥⟩)
171	28	adantr 481	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑃 Btwn ⟨𝑄, 𝑥⟩)) → (𝑃 Btwn ⟨𝑆, 𝑥⟩ → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
172	170, 171	mpd 15	. . . . . . . . . . . 12 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑃 Btwn ⟨𝑄, 𝑥⟩)) → 𝑥 Colinear ⟨𝑃, 𝑆⟩)
173	172	expr 457	. . . . . . . . . . 11 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑄 Btwn ⟨𝑆, 𝑃⟩) → (𝑃 Btwn ⟨𝑄, 𝑥⟩ → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
174	94	adantr 481	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑄 Btwn ⟨𝑥, 𝑃⟩)) → 𝑃 ≠ 𝑄)
175		simprl 767	. . . . . . . . . . . . . . 15 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑄 Btwn ⟨𝑥, 𝑃⟩)) → 𝑄 Btwn ⟨𝑆, 𝑃⟩)
176	1, 4, 2, 3, 175	btwncomand 33087	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑄 Btwn ⟨𝑥, 𝑃⟩)) → 𝑄 Btwn ⟨𝑃, 𝑆⟩)
177		simprr 769	. . . . . . . . . . . . . . 15 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑄 Btwn ⟨𝑥, 𝑃⟩)) → 𝑄 Btwn ⟨𝑥, 𝑃⟩)
178	1, 4, 8, 3, 177	btwncomand 33087	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑄 Btwn ⟨𝑥, 𝑃⟩)) → 𝑄 Btwn ⟨𝑃, 𝑥⟩)
179		btwnconn1 33173	. . . . . . . . . . . . . . . 16 ⊢ ((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁)) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑥 ∈ (𝔼‘𝑁))) → ((𝑃 ≠ 𝑄 ∧ 𝑄 Btwn ⟨𝑃, 𝑆⟩ ∧ 𝑄 Btwn ⟨𝑃, 𝑥⟩) → (𝑆 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑆⟩)))
180	1, 3, 4, 2, 8, 179	syl122anc 1372	. . . . . . . . . . . . . . 15 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → ((𝑃 ≠ 𝑄 ∧ 𝑄 Btwn ⟨𝑃, 𝑆⟩ ∧ 𝑄 Btwn ⟨𝑃, 𝑥⟩) → (𝑆 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑆⟩)))
181	180	adantr 481	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑄 Btwn ⟨𝑥, 𝑃⟩)) → ((𝑃 ≠ 𝑄 ∧ 𝑄 Btwn ⟨𝑃, 𝑆⟩ ∧ 𝑄 Btwn ⟨𝑃, 𝑥⟩) → (𝑆 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑆⟩)))
182	174, 176, 178, 181	mp3and 1456	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑄 Btwn ⟨𝑥, 𝑃⟩)) → (𝑆 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑆⟩))
183	19	adantr 481	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑄 Btwn ⟨𝑥, 𝑃⟩)) → ((𝑆 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑆⟩) → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
184	182, 183	mpd 15	. . . . . . . . . . . 12 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑄 Btwn ⟨𝑥, 𝑃⟩)) → 𝑥 Colinear ⟨𝑃, 𝑆⟩)
185	184	expr 457	. . . . . . . . . . 11 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑄 Btwn ⟨𝑆, 𝑃⟩) → (𝑄 Btwn ⟨𝑥, 𝑃⟩ → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
186	163, 173, 185	3jaod 1421	. . . . . . . . . 10 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑄 Btwn ⟨𝑆, 𝑃⟩) → ((𝑥 Btwn ⟨𝑃, 𝑄⟩ ∨ 𝑃 Btwn ⟨𝑄, 𝑥⟩ ∨ 𝑄 Btwn ⟨𝑥, 𝑃⟩) → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
187	156, 186	sylbid 241	. . . . . . . . 9 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑄 Btwn ⟨𝑆, 𝑃⟩) → (𝑥 Colinear ⟨𝑃, 𝑄⟩ → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
188	42	adantr 481	. . . . . . . . . 10 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑄 Btwn ⟨𝑆, 𝑃⟩) → (𝑥 Colinear ⟨𝑃, 𝑆⟩ ↔ (𝑥 Btwn ⟨𝑃, 𝑆⟩ ∨ 𝑃 Btwn ⟨𝑆, 𝑥⟩ ∨ 𝑆 Btwn ⟨𝑥, 𝑃⟩)))
189		simprl 767	. . . . . . . . . . . . . . 15 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑆⟩)) → 𝑄 Btwn ⟨𝑆, 𝑃⟩)
190	1, 4, 2, 3, 189	btwncomand 33087	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑆⟩)) → 𝑄 Btwn ⟨𝑃, 𝑆⟩)
191		simprr 769	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑆⟩)) → 𝑥 Btwn ⟨𝑃, 𝑆⟩)
192		btwnconn3 33175	. . . . . . . . . . . . . . . 16 ⊢ ((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁)) ∧ (𝑥 ∈ (𝔼‘𝑁) ∧ 𝑆 ∈ (𝔼‘𝑁))) → ((𝑄 Btwn ⟨𝑃, 𝑆⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑆⟩) → (𝑄 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑄⟩)))
193	1, 3, 4, 8, 2, 192	syl122anc 1372	. . . . . . . . . . . . . . 15 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → ((𝑄 Btwn ⟨𝑃, 𝑆⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑆⟩) → (𝑄 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑄⟩)))
194	193	adantr 481	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑆⟩)) → ((𝑄 Btwn ⟨𝑃, 𝑆⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑆⟩) → (𝑄 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑄⟩)))
195	190, 191, 194	mp2and 695	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑆⟩)) → (𝑄 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑄⟩))
196	77	adantr 481	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑆⟩)) → ((𝑄 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑄⟩) → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
197	195, 196	mpd 15	. . . . . . . . . . . 12 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑆⟩)) → 𝑥 Colinear ⟨𝑃, 𝑄⟩)
198	197	expr 457	. . . . . . . . . . 11 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑄 Btwn ⟨𝑆, 𝑃⟩) → (𝑥 Btwn ⟨𝑃, 𝑆⟩ → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
199		simprl 767	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑃 Btwn ⟨𝑆, 𝑥⟩)) → 𝑄 Btwn ⟨𝑆, 𝑃⟩)
200		simprr 769	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑃 Btwn ⟨𝑆, 𝑥⟩)) → 𝑃 Btwn ⟨𝑆, 𝑥⟩)
201	1, 2, 4, 3, 8, 199, 200	btwnexch3and 33093	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑃 Btwn ⟨𝑆, 𝑥⟩)) → 𝑃 Btwn ⟨𝑄, 𝑥⟩)
202	63	adantr 481	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑃 Btwn ⟨𝑆, 𝑥⟩)) → (𝑃 Btwn ⟨𝑄, 𝑥⟩ → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
203	201, 202	mpd 15	. . . . . . . . . . . 12 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑃 Btwn ⟨𝑆, 𝑥⟩)) → 𝑥 Colinear ⟨𝑃, 𝑄⟩)
204	203	expr 457	. . . . . . . . . . 11 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑄 Btwn ⟨𝑆, 𝑃⟩) → (𝑃 Btwn ⟨𝑆, 𝑥⟩ → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
205		simprl 767	. . . . . . . . . . . . . . 15 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑆 Btwn ⟨𝑥, 𝑃⟩)) → 𝑄 Btwn ⟨𝑆, 𝑃⟩)
206	1, 4, 2, 3, 205	btwncomand 33087	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑆 Btwn ⟨𝑥, 𝑃⟩)) → 𝑄 Btwn ⟨𝑃, 𝑆⟩)
207		simprr 769	. . . . . . . . . . . . . . 15 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑆 Btwn ⟨𝑥, 𝑃⟩)) → 𝑆 Btwn ⟨𝑥, 𝑃⟩)
208	1, 2, 8, 3, 207	btwncomand 33087	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑆 Btwn ⟨𝑥, 𝑃⟩)) → 𝑆 Btwn ⟨𝑃, 𝑥⟩)
209	1, 3, 4, 2, 8, 206, 208	btwnexchand 33098	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑆 Btwn ⟨𝑥, 𝑃⟩)) → 𝑄 Btwn ⟨𝑃, 𝑥⟩)
210	76	adantr 481	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑆 Btwn ⟨𝑥, 𝑃⟩)) → (𝑄 Btwn ⟨𝑃, 𝑥⟩ → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
211	209, 210	mpd 15	. . . . . . . . . . . 12 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑆 Btwn ⟨𝑥, 𝑃⟩)) → 𝑥 Colinear ⟨𝑃, 𝑄⟩)
212	211	expr 457	. . . . . . . . . . 11 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑄 Btwn ⟨𝑆, 𝑃⟩) → (𝑆 Btwn ⟨𝑥, 𝑃⟩ → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
213	198, 204, 212	3jaod 1421	. . . . . . . . . 10 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑄 Btwn ⟨𝑆, 𝑃⟩) → ((𝑥 Btwn ⟨𝑃, 𝑆⟩ ∨ 𝑃 Btwn ⟨𝑆, 𝑥⟩ ∨ 𝑆 Btwn ⟨𝑥, 𝑃⟩) → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
214	188, 213	sylbid 241	. . . . . . . . 9 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑄 Btwn ⟨𝑆, 𝑃⟩) → (𝑥 Colinear ⟨𝑃, 𝑆⟩ → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
215	187, 214	impbid 213	. . . . . . . 8 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑄 Btwn ⟨𝑆, 𝑃⟩) → (𝑥 Colinear ⟨𝑃, 𝑄⟩ ↔ 𝑥 Colinear ⟨𝑃, 𝑆⟩))
216	83, 155, 215	3jaodan 1423	. . . . . . 7 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∨ 𝑃 Btwn ⟨𝑄, 𝑆⟩ ∨ 𝑄 Btwn ⟨𝑆, 𝑃⟩)) → (𝑥 Colinear ⟨𝑃, 𝑄⟩ ↔ 𝑥 Colinear ⟨𝑃, 𝑆⟩))
217	7, 216	syldan 591	. . . . . 6 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑆 Colinear ⟨𝑃, 𝑄⟩) → (𝑥 Colinear ⟨𝑃, 𝑄⟩ ↔ 𝑥 Colinear ⟨𝑃, 𝑆⟩))
218	217	adantrl 712	. . . . 5 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑆 Colinear ⟨𝑃, 𝑄⟩)) → (𝑥 Colinear ⟨𝑃, 𝑄⟩ ↔ 𝑥 Colinear ⟨𝑃, 𝑆⟩))
219	218	an32s 648	. . . 4 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑆 Colinear ⟨𝑃, 𝑄⟩)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → (𝑥 Colinear ⟨𝑃, 𝑄⟩ ↔ 𝑥 Colinear ⟨𝑃, 𝑆⟩))
220	219	rabbidva 3426	. . 3 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑆 Colinear ⟨𝑃, 𝑄⟩)) → {𝑥 ∈ (𝔼‘𝑁) ∣ 𝑥 Colinear ⟨𝑃, 𝑄⟩} = {𝑥 ∈ (𝔼‘𝑁) ∣ 𝑥 Colinear ⟨𝑃, 𝑆⟩})
221	220	ex 413	. 2 ⊢ ((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) → ((𝑆 ∈ (𝔼‘𝑁) ∧ 𝑆 Colinear ⟨𝑃, 𝑄⟩) → {𝑥 ∈ (𝔼‘𝑁) ∣ 𝑥 Colinear ⟨𝑃, 𝑄⟩} = {𝑥 ∈ (𝔼‘𝑁) ∣ 𝑥 Colinear ⟨𝑃, 𝑆⟩}))
222		fvline2 33218	. . . . 5 ⊢ ((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄)) → (𝑃Line𝑄) = {𝑥 ∈ (𝔼‘𝑁) ∣ 𝑥 Colinear ⟨𝑃, 𝑄⟩})
223	222	3adant3 1125	. . . 4 ⊢ ((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) → (𝑃Line𝑄) = {𝑥 ∈ (𝔼‘𝑁) ∣ 𝑥 Colinear ⟨𝑃, 𝑄⟩})
224	223	eleq2d 2870	. . 3 ⊢ ((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) → (𝑆 ∈ (𝑃Line𝑄) ↔ 𝑆 ∈ {𝑥 ∈ (𝔼‘𝑁) ∣ 𝑥 Colinear ⟨𝑃, 𝑄⟩}))
225		breq1 4971	. . . 4 ⊢ (𝑥 = 𝑆 → (𝑥 Colinear ⟨𝑃, 𝑄⟩ ↔ 𝑆 Colinear ⟨𝑃, 𝑄⟩))
226	225	elrab 3621	. . 3 ⊢ (𝑆 ∈ {𝑥 ∈ (𝔼‘𝑁) ∣ 𝑥 Colinear ⟨𝑃, 𝑄⟩} ↔ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑆 Colinear ⟨𝑃, 𝑄⟩))
227	224, 226	syl6bb 288	. 2 ⊢ ((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) → (𝑆 ∈ (𝑃Line𝑄) ↔ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑆 Colinear ⟨𝑃, 𝑄⟩)))
228		simp1 1129	. . . 4 ⊢ ((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) → 𝑁 ∈ ℕ)
229		simp21 1199	. . . 4 ⊢ ((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) → 𝑃 ∈ (𝔼‘𝑁))
230		simp3l 1194	. . . 4 ⊢ ((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) → 𝑆 ∈ (𝔼‘𝑁))
231		simp3r 1195	. . . 4 ⊢ ((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) → 𝑃 ≠ 𝑆)
232		fvline2 33218	. . . 4 ⊢ ((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) → (𝑃Line𝑆) = {𝑥 ∈ (𝔼‘𝑁) ∣ 𝑥 Colinear ⟨𝑃, 𝑆⟩})
233	228, 229, 230, 231, 232	syl13anc 1365	. . 3 ⊢ ((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) → (𝑃Line𝑆) = {𝑥 ∈ (𝔼‘𝑁) ∣ 𝑥 Colinear ⟨𝑃, 𝑆⟩})
234	223, 233	eqeq12d 2812	. 2 ⊢ ((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) → ((𝑃Line𝑄) = (𝑃Line𝑆) ↔ {𝑥 ∈ (𝔼‘𝑁) ∣ 𝑥 Colinear ⟨𝑃, 𝑄⟩} = {𝑥 ∈ (𝔼‘𝑁) ∣ 𝑥 Colinear ⟨𝑃, 𝑆⟩}))
235	221, 227, 234	3imtr4d 295	1 ⊢ ((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) → (𝑆 ∈ (𝑃Line𝑄) → (𝑃Line𝑄) = (𝑃Line𝑆)))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ↔ wb 207 ∧ wa 396 ∨ wo 842 ∨ w3o 1079 ∧ w3a 1080 = wceq 1525 ∈ wcel 2083 ≠ wne 2986 {crab 3111 ⟨cop 4484 class class class wbr 4968 ‘cfv 6232 (class class class)co 7023 ℕcn 11492 𝔼cee 26361 Btwn cbtwn 26362 Colinear ccolin 33109 Linecline2 33206

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1781 ax-4 1795 ax-5 1892 ax-6 1951 ax-7 1996 ax-8 2085 ax-9 2093 ax-10 2114 ax-11 2128 ax-12 2143 ax-13 2346 ax-ext 2771 ax-rep 5088 ax-sep 5101 ax-nul 5108 ax-pow 5164 ax-pr 5228 ax-un 7326 ax-inf2 8957 ax-cnex 10446 ax-resscn 10447 ax-1cn 10448 ax-icn 10449 ax-addcl 10450 ax-addrcl 10451 ax-mulcl 10452 ax-mulrcl 10453 ax-mulcom 10454 ax-addass 10455 ax-mulass 10456 ax-distr 10457 ax-i2m1 10458 ax-1ne0 10459 ax-1rid 10460 ax-rnegex 10461 ax-rrecex 10462 ax-cnre 10463 ax-pre-lttri 10464 ax-pre-lttrn 10465 ax-pre-ltadd 10466 ax-pre-mulgt0 10467 ax-pre-sup 10468

This theorem depends on definitions: df-bi 208 df-an 397 df-or 843 df-3or 1081 df-3an 1082 df-tru 1528 df-fal 1538 df-ex 1766 df-nf 1770 df-sb 2045 df-mo 2578 df-eu 2614 df-clab 2778 df-cleq 2790 df-clel 2865 df-nfc 2937 df-ne 2987 df-nel 3093 df-ral 3112 df-rex 3113 df-reu 3114 df-rmo 3115 df-rab 3116 df-v 3442 df-sbc 3712 df-csb 3818 df-dif 3868 df-un 3870 df-in 3872 df-ss 3880 df-pss 3882 df-nul 4218 df-if 4388 df-pw 4461 df-sn 4479 df-pr 4481 df-tp 4483 df-op 4485 df-uni 4752 df-int 4789 df-iun 4833 df-br 4969 df-opab 5031 df-mpt 5048 df-tr 5071 df-id 5355 df-eprel 5360 df-po 5369 df-so 5370 df-fr 5409 df-se 5410 df-we 5411 df-xp 5456 df-rel 5457 df-cnv 5458 df-co 5459 df-dm 5460 df-rn 5461 df-res 5462 df-ima 5463 df-pred 6030 df-ord 6076 df-on 6077 df-lim 6078 df-suc 6079 df-iota 6196 df-fun 6234 df-fn 6235 df-f 6236 df-f1 6237 df-fo 6238 df-f1o 6239 df-fv 6240 df-isom 6241 df-riota 6984 df-ov 7026 df-oprab 7027 df-mpo 7028 df-om 7444 df-1st 7552 df-2nd 7553 df-wrecs 7805 df-recs 7867 df-rdg 7905 df-1o 7960 df-oadd 7964 df-er 8146 df-ec 8148 df-map 8265 df-en 8365 df-dom 8366 df-sdom 8367 df-fin 8368 df-sup 8759 df-oi 8827 df-card 9221 df-pnf 10530 df-mnf 10531 df-xr 10532 df-ltxr 10533 df-le 10534 df-sub 10725 df-neg 10726 df-div 11152 df-nn 11493 df-2 11554 df-3 11555 df-n0 11752 df-z 11836 df-uz 12098 df-rp 12244 df-ico 12598 df-icc 12599 df-fz 12747 df-fzo 12888 df-seq 13224 df-exp 13284 df-hash 13545 df-cj 14296 df-re 14297 df-im 14298 df-sqrt 14432 df-abs 14433 df-clim 14683 df-sum 14881 df-ee 26364 df-btwn 26365 df-cgr 26366 df-ofs 33055 df-colinear 33111 df-ifs 33112 df-cgr3 33113 df-fs 33114 df-line2 33209

This theorem is referenced by: linethru 33225

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