cgrxfr - Mathbox for Scott Fenton

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Theorem cgrxfr 36555

Description: A line segment can be divided at the same place as a congruent line segment is divided. Theorem 4.5 of [Schwabhauser] p. 35. (Contributed by Scott Fenton, 4-Oct-2013.)

**Assertion**
Ref	Expression
cgrxfr	⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) → ((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) → ∃𝑒 ∈ (𝔼‘𝑁)(𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩)))

Distinct variable groups: 𝐴,𝑒 𝐵,𝑒 𝐶,𝑒 𝐷,𝑒 𝑒,𝐹 𝑒,𝑁

Proof of Theorem cgrxfr Dummy variables 𝑓 𝑔 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		simpl1 1209	. . . 4 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩)) → 𝑁 ∈ ℕ)
2		simpl3r 1247	. . . 4 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩)) → 𝐹 ∈ (𝔼‘𝑁))
3		simpl3l 1246	. . . 4 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩)) → 𝐷 ∈ (𝔼‘𝑁))
4		btwndiff 36527	. . . 4 ⊢ ((𝑁 ∈ ℕ ∧ 𝐹 ∈ (𝔼‘𝑁) ∧ 𝐷 ∈ (𝔼‘𝑁)) → ∃𝑔 ∈ (𝔼‘𝑁)(𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔))
5	1, 2, 3, 4	syl3anc 1397	. . 3 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩)) → ∃𝑔 ∈ (𝔼‘𝑁)(𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔))
6		simpl1 1209	. . . . . . . . 9 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ 𝑔 ∈ (𝔼‘𝑁)) → 𝑁 ∈ ℕ)
7		simpr 489	. . . . . . . . 9 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ 𝑔 ∈ (𝔼‘𝑁)) → 𝑔 ∈ (𝔼‘𝑁))
8		simpl3l 1246	. . . . . . . . 9 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ 𝑔 ∈ (𝔼‘𝑁)) → 𝐷 ∈ (𝔼‘𝑁))
9		simpl21 1269	. . . . . . . . 9 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ 𝑔 ∈ (𝔼‘𝑁)) → 𝐴 ∈ (𝔼‘𝑁))
10		simpl22 1270	. . . . . . . . 9 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ 𝑔 ∈ (𝔼‘𝑁)) → 𝐵 ∈ (𝔼‘𝑁))
11		axsegcon 29288	. . . . . . . . 9 ⊢ ((𝑁 ∈ ℕ ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝐷 ∈ (𝔼‘𝑁)) ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁))) → ∃𝑒 ∈ (𝔼‘𝑁)(𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩))
12	6, 7, 8, 9, 10, 11	syl122anc 1405	. . . . . . . 8 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ 𝑔 ∈ (𝔼‘𝑁)) → ∃𝑒 ∈ (𝔼‘𝑁)(𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩))
13	12	adantr 485	. . . . . . 7 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ 𝑔 ∈ (𝔼‘𝑁)) ∧ ((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔))) → ∃𝑒 ∈ (𝔼‘𝑁)(𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩))
14		anass 473	. . . . . . . . . 10 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ 𝑔 ∈ (𝔼‘𝑁)) ∧ 𝑒 ∈ (𝔼‘𝑁)) ↔ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁))))
15		simpl1 1209	. . . . . . . . . . . . . 14 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁))) → 𝑁 ∈ ℕ)
16		simprl 782	. . . . . . . . . . . . . 14 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁))) → 𝑔 ∈ (𝔼‘𝑁))
17		simprr 784	. . . . . . . . . . . . . 14 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁))) → 𝑒 ∈ (𝔼‘𝑁))
18		simpl22 1270	. . . . . . . . . . . . . 14 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁))) → 𝐵 ∈ (𝔼‘𝑁))
19		simpl23 1271	. . . . . . . . . . . . . 14 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁))) → 𝐶 ∈ (𝔼‘𝑁))
20		axsegcon 29288	. . . . . . . . . . . . . 14 ⊢ ((𝑁 ∈ ℕ ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁)) ∧ (𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁))) → ∃𝑓 ∈ (𝔼‘𝑁)(𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))
21	15, 16, 17, 18, 19, 20	syl122anc 1405	. . . . . . . . . . . . 13 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁))) → ∃𝑓 ∈ (𝔼‘𝑁)(𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))
22	21	adantr 485	. . . . . . . . . . . 12 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁))) ∧ (((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩))) → ∃𝑓 ∈ (𝔼‘𝑁)(𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))
23		anass 473	. . . . . . . . . . . . . . . 16 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁))) ∧ 𝑓 ∈ (𝔼‘𝑁)) ↔ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ ((𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁)) ∧ 𝑓 ∈ (𝔼‘𝑁))))
24		df-3an 1104	. . . . . . . . . . . . . . . . 17 ⊢ ((𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁)) ↔ ((𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁)) ∧ 𝑓 ∈ (𝔼‘𝑁)))
25	24	anbi2i 634	. . . . . . . . . . . . . . . 16 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ↔ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ ((𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁)) ∧ 𝑓 ∈ (𝔼‘𝑁))))
26	23, 25	bitr4i 281	. . . . . . . . . . . . . . 15 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁))) ∧ 𝑓 ∈ (𝔼‘𝑁)) ↔ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))))
27		simplrr 789	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) → 𝐷 ≠ 𝑔)
28	27	ad2antrl 740	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → 𝐷 ≠ 𝑔)
29	28	necomd 3012	. . . . . . . . . . . . . . . . . . . . 21 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → 𝑔 ≠ 𝐷)
30		simpl1 1209	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) → 𝑁 ∈ ℕ)
31		simpr1 1212	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) → 𝑔 ∈ (𝔼‘𝑁))
32		simpl3l 1246	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) → 𝐷 ∈ (𝔼‘𝑁))
33		simpr2 1213	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) → 𝑒 ∈ (𝔼‘𝑁))
34		simpr3 1214	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) → 𝑓 ∈ (𝔼‘𝑁))
35		simprl 782	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) → 𝐷 Btwn ⟨𝑔, 𝑒⟩)
36	35	ad2antrl 740	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → 𝐷 Btwn ⟨𝑔, 𝑒⟩)
37		simprrl 792	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → 𝑒 Btwn ⟨𝑔, 𝑓⟩)
38	30, 31, 32, 33, 34, 36, 37	btwnexchand 36526	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → 𝐷 Btwn ⟨𝑔, 𝑓⟩)
39		simpl21 1269	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) → 𝐴 ∈ (𝔼‘𝑁))
40		simpl22 1270	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) → 𝐵 ∈ (𝔼‘𝑁))
41		simpl23 1271	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) → 𝐶 ∈ (𝔼‘𝑁))
42	30, 31, 32, 33, 34, 36, 37	btwnexch3and 36521	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → 𝑒 Btwn ⟨𝐷, 𝑓⟩)
43		simplll 786	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) → 𝐵 Btwn ⟨𝐴, 𝐶⟩)
44	43	ad2antrl 740	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → 𝐵 Btwn ⟨𝐴, 𝐶⟩)
45		simprr 784	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) → ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)
46	45	ad2antrl 740	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)
47		simprrr 793	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩)
48	30, 32, 33, 34, 39, 40, 41, 42, 44, 46, 47	cgrextendand 36509	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → ⟨𝐷, 𝑓⟩Cgr⟨𝐴, 𝐶⟩)
49	38, 48	jca 520	. . . . . . . . . . . . . . . . . . . . 21 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → (𝐷 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝐷, 𝑓⟩Cgr⟨𝐴, 𝐶⟩))
50		simpl3r 1247	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) → 𝐹 ∈ (𝔼‘𝑁))
51		simplrl 788	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) → 𝐷 Btwn ⟨𝐹, 𝑔⟩)
52	51	ad2antrl 740	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → 𝐷 Btwn ⟨𝐹, 𝑔⟩)
53	30, 32, 50, 31, 52	btwncomand 36515	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → 𝐷 Btwn ⟨𝑔, 𝐹⟩)
54		simpllr 787	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) → ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩)
55	54	ad2antrl 740	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩)
56	30, 39, 41, 32, 50, 55	cgrcomand 36491	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → ⟨𝐷, 𝐹⟩Cgr⟨𝐴, 𝐶⟩)
57	53, 56	jca 520	. . . . . . . . . . . . . . . . . . . . 21 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → (𝐷 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝐷, 𝐹⟩Cgr⟨𝐴, 𝐶⟩))
58	29, 49, 57	3jca 1145	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → (𝑔 ≠ 𝐷 ∧ (𝐷 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝐷, 𝑓⟩Cgr⟨𝐴, 𝐶⟩) ∧ (𝐷 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝐷, 𝐹⟩Cgr⟨𝐴, 𝐶⟩)))
59	58	ex 417	. . . . . . . . . . . . . . . . . . 19 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) → (((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩)) → (𝑔 ≠ 𝐷 ∧ (𝐷 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝐷, 𝑓⟩Cgr⟨𝐴, 𝐶⟩) ∧ (𝐷 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝐷, 𝐹⟩Cgr⟨𝐴, 𝐶⟩))))
60		segconeq 36510	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝑁 ∈ ℕ ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐴 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) → ((𝑔 ≠ 𝐷 ∧ (𝐷 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝐷, 𝑓⟩Cgr⟨𝐴, 𝐶⟩) ∧ (𝐷 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝐷, 𝐹⟩Cgr⟨𝐴, 𝐶⟩)) → 𝑓 = 𝐹))
61	30, 32, 39, 41, 31, 34, 50, 60	syl133anc 1419	. . . . . . . . . . . . . . . . . . 19 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) → ((𝑔 ≠ 𝐷 ∧ (𝐷 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝐷, 𝑓⟩Cgr⟨𝐴, 𝐶⟩) ∧ (𝐷 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝐷, 𝐹⟩Cgr⟨𝐴, 𝐶⟩)) → 𝑓 = 𝐹))
62	59, 61	syld 48	. . . . . . . . . . . . . . . . . 18 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) → (((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩)) → 𝑓 = 𝐹))
63	62	imp 411	. . . . . . . . . . . . . . . . 17 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → 𝑓 = 𝐹)
64		opeq2 4838	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (𝑓 = 𝐹 → ⟨𝑔, 𝑓⟩ = ⟨𝑔, 𝐹⟩)
65	64	breq2d 5120	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (𝑓 = 𝐹 → (𝑒 Btwn ⟨𝑔, 𝑓⟩ ↔ 𝑒 Btwn ⟨𝑔, 𝐹⟩))
66		opeq2 4838	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (𝑓 = 𝐹 → ⟨𝑒, 𝑓⟩ = ⟨𝑒, 𝐹⟩)
67	66	breq1d 5118	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (𝑓 = 𝐹 → (⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩ ↔ ⟨𝑒, 𝐹⟩Cgr⟨𝐵, 𝐶⟩))
68	65, 67	anbi12d 643	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (𝑓 = 𝐹 → ((𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩) ↔ (𝑒 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝑒, 𝐹⟩Cgr⟨𝐵, 𝐶⟩)))
69	68	biimpa 481	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝑓 = 𝐹 ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩)) → (𝑒 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝑒, 𝐹⟩Cgr⟨𝐵, 𝐶⟩))
70		simpl 487	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((𝑒 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝑒, 𝐹⟩Cgr⟨𝐵, 𝐶⟩) → 𝑒 Btwn ⟨𝑔, 𝐹⟩)
71		btwnexch3 36520	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ ((𝑁 ∈ ℕ ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝐷 ∈ (𝔼‘𝑁)) ∧ (𝑒 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) → ((𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ 𝑒 Btwn ⟨𝑔, 𝐹⟩) → 𝑒 Btwn ⟨𝐷, 𝐹⟩))
72	30, 31, 32, 33, 50, 71	syl122anc 1405	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) → ((𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ 𝑒 Btwn ⟨𝑔, 𝐹⟩) → 𝑒 Btwn ⟨𝐷, 𝐹⟩))
73	35, 70, 72	syl2ani 618	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) → (((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝑒, 𝐹⟩Cgr⟨𝐵, 𝐶⟩)) → 𝑒 Btwn ⟨𝐷, 𝐹⟩))
74	73	imp 411	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝑒, 𝐹⟩Cgr⟨𝐵, 𝐶⟩))) → 𝑒 Btwn ⟨𝐷, 𝐹⟩)
75		simplrr 789	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ (((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝑒, 𝐹⟩Cgr⟨𝐵, 𝐶⟩)) → ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)
76	75	adantl 486	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝑒, 𝐹⟩Cgr⟨𝐵, 𝐶⟩))) → ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)
77	30, 32, 33, 39, 40, 76	cgrcomand 36491	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝑒, 𝐹⟩Cgr⟨𝐵, 𝐶⟩))) → ⟨𝐴, 𝐵⟩Cgr⟨𝐷, 𝑒⟩)
78	54	ad2antrl 740	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝑒, 𝐹⟩Cgr⟨𝐵, 𝐶⟩))) → ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩)
79		simprrr 793	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝑒, 𝐹⟩Cgr⟨𝐵, 𝐶⟩))) → ⟨𝑒, 𝐹⟩Cgr⟨𝐵, 𝐶⟩)
80	30, 33, 50, 40, 41, 79	cgrcomand 36491	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝑒, 𝐹⟩Cgr⟨𝐵, 𝐶⟩))) → ⟨𝐵, 𝐶⟩Cgr⟨𝑒, 𝐹⟩)
81		brcgr3 36546	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) → (⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩ ↔ (⟨𝐴, 𝐵⟩Cgr⟨𝐷, 𝑒⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩ ∧ ⟨𝐵, 𝐶⟩Cgr⟨𝑒, 𝐹⟩)))
82	30, 39, 40, 41, 32, 33, 50, 81	syl133anc 1419	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) → (⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩ ↔ (⟨𝐴, 𝐵⟩Cgr⟨𝐷, 𝑒⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩ ∧ ⟨𝐵, 𝐶⟩Cgr⟨𝑒, 𝐹⟩)))
83	82	adantr 485	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝑒, 𝐹⟩Cgr⟨𝐵, 𝐶⟩))) → (⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩ ↔ (⟨𝐴, 𝐵⟩Cgr⟨𝐷, 𝑒⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩ ∧ ⟨𝐵, 𝐶⟩Cgr⟨𝑒, 𝐹⟩)))
84	77, 78, 80, 83	mpbir3and 1360	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝑒, 𝐹⟩Cgr⟨𝐵, 𝐶⟩))) → ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩)
85	74, 84	jca 520	. . . . . . . . . . . . . . . . . . . . 21 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝑒, 𝐹⟩Cgr⟨𝐵, 𝐶⟩))) → (𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩))
86	85	expr 461	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ (((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩))) → ((𝑒 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝑒, 𝐹⟩Cgr⟨𝐵, 𝐶⟩) → (𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩)))
87	69, 86	syl5 35	. . . . . . . . . . . . . . . . . . 19 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ (((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩))) → ((𝑓 = 𝐹 ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩)) → (𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩)))
88	87	expcomd 421	. . . . . . . . . . . . . . . . . 18 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ (((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩))) → ((𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩) → (𝑓 = 𝐹 → (𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩))))
89	88	impr 459	. . . . . . . . . . . . . . . . 17 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → (𝑓 = 𝐹 → (𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩)))
90	63, 89	mpd 16	. . . . . . . . . . . . . . . 16 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → (𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩))
91	90	expr 461	. . . . . . . . . . . . . . 15 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ (((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩))) → ((𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩) → (𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩)))
92	26, 91	sylanb 592	. . . . . . . . . . . . . 14 ⊢ (((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁))) ∧ 𝑓 ∈ (𝔼‘𝑁)) ∧ (((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩))) → ((𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩) → (𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩)))
93	92	an32s 664	. . . . . . . . . . . . 13 ⊢ (((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁))) ∧ (((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩))) ∧ 𝑓 ∈ (𝔼‘𝑁)) → ((𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩) → (𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩)))
94	93	rexlimdva 3165	. . . . . . . . . . . 12 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁))) ∧ (((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩))) → (∃𝑓 ∈ (𝔼‘𝑁)(𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩) → (𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩)))
95	22, 94	mpd 16	. . . . . . . . . . 11 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁))) ∧ (((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩))) → (𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩))
96	95	expr 461	. . . . . . . . . 10 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁))) ∧ ((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔))) → ((𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩) → (𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩)))
97	14, 96	sylanb 592	. . . . . . . . 9 ⊢ (((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ 𝑔 ∈ (𝔼‘𝑁)) ∧ 𝑒 ∈ (𝔼‘𝑁)) ∧ ((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔))) → ((𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩) → (𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩)))
98	97	an32s 664	. . . . . . . 8 ⊢ (((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ 𝑔 ∈ (𝔼‘𝑁)) ∧ ((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔))) ∧ 𝑒 ∈ (𝔼‘𝑁)) → ((𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩) → (𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩)))
99	98	reximdva 3177	. . . . . . 7 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ 𝑔 ∈ (𝔼‘𝑁)) ∧ ((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔))) → (∃𝑒 ∈ (𝔼‘𝑁)(𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩) → ∃𝑒 ∈ (𝔼‘𝑁)(𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩)))
100	13, 99	mpd 16	. . . . . 6 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ 𝑔 ∈ (𝔼‘𝑁)) ∧ ((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔))) → ∃𝑒 ∈ (𝔼‘𝑁)(𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩))
101	100	expr 461	. . . . 5 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ 𝑔 ∈ (𝔼‘𝑁)) ∧ (𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩)) → ((𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔) → ∃𝑒 ∈ (𝔼‘𝑁)(𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩)))
102	101	an32s 664	. . . 4 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩)) ∧ 𝑔 ∈ (𝔼‘𝑁)) → ((𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔) → ∃𝑒 ∈ (𝔼‘𝑁)(𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩)))
103	102	rexlimdva 3165	. . 3 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩)) → (∃𝑔 ∈ (𝔼‘𝑁)(𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔) → ∃𝑒 ∈ (𝔼‘𝑁)(𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩)))
104	5, 103	mpd 16	. 2 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩)) → ∃𝑒 ∈ (𝔼‘𝑁)(𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩))
105	104	ex 417	1 ⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) → ((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) → ∃𝑒 ∈ (𝔼‘𝑁)(𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩)))

Colors of variables: wff setvar class

This proof depends on syntax axioms: → wi 4 ↔ wb 209 ∧ wa 400 ∧ w3a 1102 = wceq 1569 ∈ wcel 2142 ≠ wne 2957 ∃wrex 3088 ⟨cop 4594 class class class wbr 5108 ‘cfv 6536 ℕcn 12239 𝔼cee 29248 Btwn cbtwn 29249 Cgrccgr 29250 Cgr3ccgr3 36536

This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1824 ax-4 1838 ax-5 1939 ax-6 1996 ax-7 2037 ax-8 2144 ax-9 2152 ax-10 2175 ax-11 2191 ax-12 2212 ax-ext 2734 ax-rep 5237 ax-sep 5256 ax-nul 5268 ax-pow 5335 ax-pr 5403 ax-un 7734 ax-inf2 9608 ax-cnex 11162 ax-resscn 11163 ax-1cn 11164 ax-icn 11165 ax-addcl 11166 ax-addrcl 11167 ax-mulcl 11168 ax-mulrcl 11169 ax-mulcom 11170 ax-addass 11171 ax-mulass 11172 ax-distr 11173 ax-i2m1 11174 ax-1ne0 11175 ax-1rid 11176 ax-rnegex 11177 ax-rrecex 11178 ax-cnre 11179 ax-pre-lttri 11180 ax-pre-lttrn 11181 ax-pre-ltadd 11182 ax-pre-mulgt0 11183 ax-pre-sup 11184

This proof depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1103 df-3an 1104 df-tru 1572 df-fal 1582 df-ex 1809 df-nf 1813 df-sb 2096 df-mo 2566 df-eu 2596 df-clab 2741 df-cleq 2754 df-clel 2837 df-nfc 2911 df-ne 2958 df-nel 3064 df-ral 3079 df-rex 3089 df-rmo 3368 df-reu 3369 df-rab 3416 df-v 3456 df-sbc 3744 df-csb 3853 df-dif 3907 df-un 3909 df-in 3911 df-ss 3921 df-pss 3924 df-nul 4286 df-if 4487 df-pw 4563 df-sn 4589 df-pr 4591 df-op 4595 df-uni 4872 df-int 4912 df-iun 4957 df-br 5109 df-opab 5173 df-mpt 5192 df-tr 5218 df-id 5555 df-eprel 5560 df-po 5568 df-so 5569 df-fr 5613 df-se 5614 df-we 5615 df-xp 5666 df-rel 5667 df-cnv 5668 df-co 5669 df-dm 5670 df-rn 5671 df-res 5672 df-ima 5673 df-pred 6302 df-ord 6363 df-on 6364 df-lim 6365 df-suc 6366 df-iota 6492 df-fun 6538 df-fn 6539 df-f 6540 df-f1 6541 df-fo 6542 df-f1o 6543 df-fv 6544 df-isom 6545 df-riota 7369 df-ov 7415 df-oprab 7416 df-mpo 7417 df-om 7861 df-1st 7984 df-2nd 7985 df-frecs 8276 df-wrecs 8307 df-recs 8356 df-rdg 8395 df-1o 8451 df-er 8692 df-map 8824 df-en 8942 df-dom 8943 df-sdom 8944 df-fin 8945 df-sup 9400 df-oi 9470 df-card 9932 df-pnf 11251 df-mnf 11252 df-xr 11253 df-ltxr 11254 df-le 11255 df-sub 11449 df-neg 11450 df-div 11878 df-nn 12240 df-2 12309 df-3 12310 df-n0 12511 df-z 12598 df-uz 12869 df-rp 13023 df-ico 13384 df-icc 13385 df-fz 13542 df-fzo 13690 df-seq 14045 df-exp 14105 df-hash 14374 df-cj 15157 df-re 15158 df-im 15159 df-sqrt 15293 df-abs 15294 df-clim 15546 df-sum 15745 df-ee 29251 df-btwn 29252 df-cgr 29253 df-ofs 36483 df-cgr3 36541

This theorem is used by: btwnxfr 36556 lineext 36576 seglecgr12im 36610 segletr 36614

W3C validator