Theorem ltanqg 7768

Description: Ordering property of addition for positive fractions. Proposition 9-2.6(ii) of [Gleason] p. 120. (Contributed by Jim Kingdon, 22-Sep-2019.)

Assertion

Ref	Expression
ltanqg	⊢ ((𝐴 ∈ Q ∧ 𝐵 ∈ Q ∧ 𝐶 ∈ Q) → (𝐴 <Q 𝐵 ↔ (𝐶 +Q 𝐴) <Q (𝐶 +Q 𝐵)))

Proof of Theorem ltanqg

Dummy variables 𝑥 𝑦 𝑧 𝑤 𝑣 𝑢 𝑓 𝑔 ℎ are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		df-nqqs 7716	. 2 ⊢ Q = ((N × N) / ~Q )
2		breq1 4133	. . 3 ⊢ ([⟨𝑥, 𝑦⟩] ~Q = 𝐴 → ([⟨𝑥, 𝑦⟩] ~Q <Q [⟨𝑧, 𝑤⟩] ~Q ↔ 𝐴 <Q [⟨𝑧, 𝑤⟩] ~Q ))
3		oveq2 6093	. . . 4 ⊢ ([⟨𝑥, 𝑦⟩] ~Q = 𝐴 → ([⟨𝑣, 𝑢⟩] ~Q +Q [⟨𝑥, 𝑦⟩] ~Q ) = ([⟨𝑣, 𝑢⟩] ~Q +Q 𝐴))
4	3	breq1d 4140	. . 3 ⊢ ([⟨𝑥, 𝑦⟩] ~Q = 𝐴 → (([⟨𝑣, 𝑢⟩] ~Q +Q [⟨𝑥, 𝑦⟩] ~Q ) <Q ([⟨𝑣, 𝑢⟩] ~Q +Q [⟨𝑧, 𝑤⟩] ~Q ) ↔ ([⟨𝑣, 𝑢⟩] ~Q +Q 𝐴) <Q ([⟨𝑣, 𝑢⟩] ~Q +Q [⟨𝑧, 𝑤⟩] ~Q )))
5	2, 4	bibi12d 235	. 2 ⊢ ([⟨𝑥, 𝑦⟩] ~Q = 𝐴 → (([⟨𝑥, 𝑦⟩] ~Q <Q [⟨𝑧, 𝑤⟩] ~Q ↔ ([⟨𝑣, 𝑢⟩] ~Q +Q [⟨𝑥, 𝑦⟩] ~Q ) <Q ([⟨𝑣, 𝑢⟩] ~Q +Q [⟨𝑧, 𝑤⟩] ~Q )) ↔ (𝐴 <Q [⟨𝑧, 𝑤⟩] ~Q ↔ ([⟨𝑣, 𝑢⟩] ~Q +Q 𝐴) <Q ([⟨𝑣, 𝑢⟩] ~Q +Q [⟨𝑧, 𝑤⟩] ~Q ))))
6		breq2 4134	. . 3 ⊢ ([⟨𝑧, 𝑤⟩] ~Q = 𝐵 → (𝐴 <Q [⟨𝑧, 𝑤⟩] ~Q ↔ 𝐴 <Q 𝐵))
7		oveq2 6093	. . . 4 ⊢ ([⟨𝑧, 𝑤⟩] ~Q = 𝐵 → ([⟨𝑣, 𝑢⟩] ~Q +Q [⟨𝑧, 𝑤⟩] ~Q ) = ([⟨𝑣, 𝑢⟩] ~Q +Q 𝐵))
8	7	breq2d 4142	. . 3 ⊢ ([⟨𝑧, 𝑤⟩] ~Q = 𝐵 → (([⟨𝑣, 𝑢⟩] ~Q +Q 𝐴) <Q ([⟨𝑣, 𝑢⟩] ~Q +Q [⟨𝑧, 𝑤⟩] ~Q ) ↔ ([⟨𝑣, 𝑢⟩] ~Q +Q 𝐴) <Q ([⟨𝑣, 𝑢⟩] ~Q +Q 𝐵)))
9	6, 8	bibi12d 235	. 2 ⊢ ([⟨𝑧, 𝑤⟩] ~Q = 𝐵 → ((𝐴 <Q [⟨𝑧, 𝑤⟩] ~Q ↔ ([⟨𝑣, 𝑢⟩] ~Q +Q 𝐴) <Q ([⟨𝑣, 𝑢⟩] ~Q +Q [⟨𝑧, 𝑤⟩] ~Q )) ↔ (𝐴 <Q 𝐵 ↔ ([⟨𝑣, 𝑢⟩] ~Q +Q 𝐴) <Q ([⟨𝑣, 𝑢⟩] ~Q +Q 𝐵))))
10		oveq1 6092	. . . 4 ⊢ ([⟨𝑣, 𝑢⟩] ~Q = 𝐶 → ([⟨𝑣, 𝑢⟩] ~Q +Q 𝐴) = (𝐶 +Q 𝐴))
11		oveq1 6092	. . . 4 ⊢ ([⟨𝑣, 𝑢⟩] ~Q = 𝐶 → ([⟨𝑣, 𝑢⟩] ~Q +Q 𝐵) = (𝐶 +Q 𝐵))
12	10, 11	breq12d 4143	. . 3 ⊢ ([⟨𝑣, 𝑢⟩] ~Q = 𝐶 → (([⟨𝑣, 𝑢⟩] ~Q +Q 𝐴) <Q ([⟨𝑣, 𝑢⟩] ~Q +Q 𝐵) ↔ (𝐶 +Q 𝐴) <Q (𝐶 +Q 𝐵)))
13	12	bibi2d 232	. 2 ⊢ ([⟨𝑣, 𝑢⟩] ~Q = 𝐶 → ((𝐴 <Q 𝐵 ↔ ([⟨𝑣, 𝑢⟩] ~Q +Q 𝐴) <Q ([⟨𝑣, 𝑢⟩] ~Q +Q 𝐵)) ↔ (𝐴 <Q 𝐵 ↔ (𝐶 +Q 𝐴) <Q (𝐶 +Q 𝐵))))
14		addclpi 7695	. . . . . 6 ⊢ ((𝑓 ∈ N ∧ 𝑔 ∈ N) → (𝑓 +N 𝑔) ∈ N)
15	14	adantl 277	. . . . 5 ⊢ ((((𝑥 ∈ N ∧ 𝑦 ∈ N) ∧ (𝑧 ∈ N ∧ 𝑤 ∈ N) ∧ (𝑣 ∈ N ∧ 𝑢 ∈ N)) ∧ (𝑓 ∈ N ∧ 𝑔 ∈ N)) → (𝑓 +N 𝑔) ∈ N)
16		simp3l 1056	. . . . . 6 ⊢ (((𝑥 ∈ N ∧ 𝑦 ∈ N) ∧ (𝑧 ∈ N ∧ 𝑤 ∈ N) ∧ (𝑣 ∈ N ∧ 𝑢 ∈ N)) → 𝑣 ∈ N)
17		simp1r 1053	. . . . . 6 ⊢ (((𝑥 ∈ N ∧ 𝑦 ∈ N) ∧ (𝑧 ∈ N ∧ 𝑤 ∈ N) ∧ (𝑣 ∈ N ∧ 𝑢 ∈ N)) → 𝑦 ∈ N)
18		mulclpi 7696	. . . . . 6 ⊢ ((𝑣 ∈ N ∧ 𝑦 ∈ N) → (𝑣 ·N 𝑦) ∈ N)
19	16, 17, 18	syl2anc 415	. . . . 5 ⊢ (((𝑥 ∈ N ∧ 𝑦 ∈ N) ∧ (𝑧 ∈ N ∧ 𝑤 ∈ N) ∧ (𝑣 ∈ N ∧ 𝑢 ∈ N)) → (𝑣 ·N 𝑦) ∈ N)
20		simp3r 1057	. . . . . 6 ⊢ (((𝑥 ∈ N ∧ 𝑦 ∈ N) ∧ (𝑧 ∈ N ∧ 𝑤 ∈ N) ∧ (𝑣 ∈ N ∧ 𝑢 ∈ N)) → 𝑢 ∈ N)
21		simp1l 1052	. . . . . 6 ⊢ (((𝑥 ∈ N ∧ 𝑦 ∈ N) ∧ (𝑧 ∈ N ∧ 𝑤 ∈ N) ∧ (𝑣 ∈ N ∧ 𝑢 ∈ N)) → 𝑥 ∈ N)
22		mulclpi 7696	. . . . . 6 ⊢ ((𝑢 ∈ N ∧ 𝑥 ∈ N) → (𝑢 ·N 𝑥) ∈ N)
23	20, 21, 22	syl2anc 415	. . . . 5 ⊢ (((𝑥 ∈ N ∧ 𝑦 ∈ N) ∧ (𝑧 ∈ N ∧ 𝑤 ∈ N) ∧ (𝑣 ∈ N ∧ 𝑢 ∈ N)) → (𝑢 ·N 𝑥) ∈ N)
24	15, 19, 23	caovcld 6243	. . . 4 ⊢ (((𝑥 ∈ N ∧ 𝑦 ∈ N) ∧ (𝑧 ∈ N ∧ 𝑤 ∈ N) ∧ (𝑣 ∈ N ∧ 𝑢 ∈ N)) → ((𝑣 ·N 𝑦) +N (𝑢 ·N 𝑥)) ∈ N)
25		mulclpi 7696	. . . . 5 ⊢ ((𝑢 ∈ N ∧ 𝑦 ∈ N) → (𝑢 ·N 𝑦) ∈ N)
26	20, 17, 25	syl2anc 415	. . . 4 ⊢ (((𝑥 ∈ N ∧ 𝑦 ∈ N) ∧ (𝑧 ∈ N ∧ 𝑤 ∈ N) ∧ (𝑣 ∈ N ∧ 𝑢 ∈ N)) → (𝑢 ·N 𝑦) ∈ N)
27		mulclpi 7696	. . . . . . 7 ⊢ ((𝑓 ∈ N ∧ 𝑔 ∈ N) → (𝑓 ·N 𝑔) ∈ N)
28	27	adantl 277	. . . . . 6 ⊢ ((((𝑥 ∈ N ∧ 𝑦 ∈ N) ∧ (𝑧 ∈ N ∧ 𝑤 ∈ N) ∧ (𝑣 ∈ N ∧ 𝑢 ∈ N)) ∧ (𝑓 ∈ N ∧ 𝑔 ∈ N)) → (𝑓 ·N 𝑔) ∈ N)
29		simp2r 1055	. . . . . 6 ⊢ (((𝑥 ∈ N ∧ 𝑦 ∈ N) ∧ (𝑧 ∈ N ∧ 𝑤 ∈ N) ∧ (𝑣 ∈ N ∧ 𝑢 ∈ N)) → 𝑤 ∈ N)
30	28, 16, 29	caovcld 6243	. . . . 5 ⊢ (((𝑥 ∈ N ∧ 𝑦 ∈ N) ∧ (𝑧 ∈ N ∧ 𝑤 ∈ N) ∧ (𝑣 ∈ N ∧ 𝑢 ∈ N)) → (𝑣 ·N 𝑤) ∈ N)
31		simp2l 1054	. . . . . 6 ⊢ (((𝑥 ∈ N ∧ 𝑦 ∈ N) ∧ (𝑧 ∈ N ∧ 𝑤 ∈ N) ∧ (𝑣 ∈ N ∧ 𝑢 ∈ N)) → 𝑧 ∈ N)
32		mulclpi 7696	. . . . . 6 ⊢ ((𝑢 ∈ N ∧ 𝑧 ∈ N) → (𝑢 ·N 𝑧) ∈ N)
33	20, 31, 32	syl2anc 415	. . . . 5 ⊢ (((𝑥 ∈ N ∧ 𝑦 ∈ N) ∧ (𝑧 ∈ N ∧ 𝑤 ∈ N) ∧ (𝑣 ∈ N ∧ 𝑢 ∈ N)) → (𝑢 ·N 𝑧) ∈ N)
34	15, 30, 33	caovcld 6243	. . . 4 ⊢ (((𝑥 ∈ N ∧ 𝑦 ∈ N) ∧ (𝑧 ∈ N ∧ 𝑤 ∈ N) ∧ (𝑣 ∈ N ∧ 𝑢 ∈ N)) → ((𝑣 ·N 𝑤) +N (𝑢 ·N 𝑧)) ∈ N)
35		mulclpi 7696	. . . . 5 ⊢ ((𝑢 ∈ N ∧ 𝑤 ∈ N) → (𝑢 ·N 𝑤) ∈ N)
36	20, 29, 35	syl2anc 415	. . . 4 ⊢ (((𝑥 ∈ N ∧ 𝑦 ∈ N) ∧ (𝑧 ∈ N ∧ 𝑤 ∈ N) ∧ (𝑣 ∈ N ∧ 𝑢 ∈ N)) → (𝑢 ·N 𝑤) ∈ N)
37		ordpipqqs 7742	. . . 4 ⊢ (((((𝑣 ·N 𝑦) +N (𝑢 ·N 𝑥)) ∈ N ∧ (𝑢 ·N 𝑦) ∈ N) ∧ (((𝑣 ·N 𝑤) +N (𝑢 ·N 𝑧)) ∈ N ∧ (𝑢 ·N 𝑤) ∈ N)) → ([⟨((𝑣 ·N 𝑦) +N (𝑢 ·N 𝑥)), (𝑢 ·N 𝑦)⟩] ~Q <Q [⟨((𝑣 ·N 𝑤) +N (𝑢 ·N 𝑧)), (𝑢 ·N 𝑤)⟩] ~Q ↔ (((𝑣 ·N 𝑦) +N (𝑢 ·N 𝑥)) ·N (𝑢 ·N 𝑤)) <N ((𝑢 ·N 𝑦) ·N ((𝑣 ·N 𝑤) +N (𝑢 ·N 𝑧)))))
38	24, 26, 34, 36, 37	syl22anc 1279	. . 3 ⊢ (((𝑥 ∈ N ∧ 𝑦 ∈ N) ∧ (𝑧 ∈ N ∧ 𝑤 ∈ N) ∧ (𝑣 ∈ N ∧ 𝑢 ∈ N)) → ([⟨((𝑣 ·N 𝑦) +N (𝑢 ·N 𝑥)), (𝑢 ·N 𝑦)⟩] ~Q <Q [⟨((𝑣 ·N 𝑤) +N (𝑢 ·N 𝑧)), (𝑢 ·N 𝑤)⟩] ~Q ↔ (((𝑣 ·N 𝑦) +N (𝑢 ·N 𝑥)) ·N (𝑢 ·N 𝑤)) <N ((𝑢 ·N 𝑦) ·N ((𝑣 ·N 𝑤) +N (𝑢 ·N 𝑧)))))
39		simp3 1030	. . . . 5 ⊢ (((𝑥 ∈ N ∧ 𝑦 ∈ N) ∧ (𝑧 ∈ N ∧ 𝑤 ∈ N) ∧ (𝑣 ∈ N ∧ 𝑢 ∈ N)) → (𝑣 ∈ N ∧ 𝑢 ∈ N))
40		simp1 1028	. . . . 5 ⊢ (((𝑥 ∈ N ∧ 𝑦 ∈ N) ∧ (𝑧 ∈ N ∧ 𝑤 ∈ N) ∧ (𝑣 ∈ N ∧ 𝑢 ∈ N)) → (𝑥 ∈ N ∧ 𝑦 ∈ N))
41		addpipqqs 7738	. . . . 5 ⊢ (((𝑣 ∈ N ∧ 𝑢 ∈ N) ∧ (𝑥 ∈ N ∧ 𝑦 ∈ N)) → ([⟨𝑣, 𝑢⟩] ~Q +Q [⟨𝑥, 𝑦⟩] ~Q ) = [⟨((𝑣 ·N 𝑦) +N (𝑢 ·N 𝑥)), (𝑢 ·N 𝑦)⟩] ~Q )
42	39, 40, 41	syl2anc 415	. . . 4 ⊢ (((𝑥 ∈ N ∧ 𝑦 ∈ N) ∧ (𝑧 ∈ N ∧ 𝑤 ∈ N) ∧ (𝑣 ∈ N ∧ 𝑢 ∈ N)) → ([⟨𝑣, 𝑢⟩] ~Q +Q [⟨𝑥, 𝑦⟩] ~Q ) = [⟨((𝑣 ·N 𝑦) +N (𝑢 ·N 𝑥)), (𝑢 ·N 𝑦)⟩] ~Q )
43		simp2 1029	. . . . 5 ⊢ (((𝑥 ∈ N ∧ 𝑦 ∈ N) ∧ (𝑧 ∈ N ∧ 𝑤 ∈ N) ∧ (𝑣 ∈ N ∧ 𝑢 ∈ N)) → (𝑧 ∈ N ∧ 𝑤 ∈ N))
44		addpipqqs 7738	. . . . 5 ⊢ (((𝑣 ∈ N ∧ 𝑢 ∈ N) ∧ (𝑧 ∈ N ∧ 𝑤 ∈ N)) → ([⟨𝑣, 𝑢⟩] ~Q +Q [⟨𝑧, 𝑤⟩] ~Q ) = [⟨((𝑣 ·N 𝑤) +N (𝑢 ·N 𝑧)), (𝑢 ·N 𝑤)⟩] ~Q )
45	39, 43, 44	syl2anc 415	. . . 4 ⊢ (((𝑥 ∈ N ∧ 𝑦 ∈ N) ∧ (𝑧 ∈ N ∧ 𝑤 ∈ N) ∧ (𝑣 ∈ N ∧ 𝑢 ∈ N)) → ([⟨𝑣, 𝑢⟩] ~Q +Q [⟨𝑧, 𝑤⟩] ~Q ) = [⟨((𝑣 ·N 𝑤) +N (𝑢 ·N 𝑧)), (𝑢 ·N 𝑤)⟩] ~Q )
46	42, 45	breq12d 4143	. . 3 ⊢ (((𝑥 ∈ N ∧ 𝑦 ∈ N) ∧ (𝑧 ∈ N ∧ 𝑤 ∈ N) ∧ (𝑣 ∈ N ∧ 𝑢 ∈ N)) → (([⟨𝑣, 𝑢⟩] ~Q +Q [⟨𝑥, 𝑦⟩] ~Q ) <Q ([⟨𝑣, 𝑢⟩] ~Q +Q [⟨𝑧, 𝑤⟩] ~Q ) ↔ [⟨((𝑣 ·N 𝑦) +N (𝑢 ·N 𝑥)), (𝑢 ·N 𝑦)⟩] ~Q <Q [⟨((𝑣 ·N 𝑤) +N (𝑢 ·N 𝑧)), (𝑢 ·N 𝑤)⟩] ~Q ))
47		ordpipqqs 7742	. . . . 5 ⊢ (((𝑥 ∈ N ∧ 𝑦 ∈ N) ∧ (𝑧 ∈ N ∧ 𝑤 ∈ N)) → ([⟨𝑥, 𝑦⟩] ~Q <Q [⟨𝑧, 𝑤⟩] ~Q ↔ (𝑥 ·N 𝑤) <N (𝑦 ·N 𝑧)))
48	47	3adant3 1048	. . . 4 ⊢ (((𝑥 ∈ N ∧ 𝑦 ∈ N) ∧ (𝑧 ∈ N ∧ 𝑤 ∈ N) ∧ (𝑣 ∈ N ∧ 𝑢 ∈ N)) → ([⟨𝑥, 𝑦⟩] ~Q <Q [⟨𝑧, 𝑤⟩] ~Q ↔ (𝑥 ·N 𝑤) <N (𝑦 ·N 𝑧)))
49		mulclpi 7696	. . . . . 6 ⊢ ((𝑥 ∈ N ∧ 𝑤 ∈ N) → (𝑥 ·N 𝑤) ∈ N)
50	21, 29, 49	syl2anc 415	. . . . 5 ⊢ (((𝑥 ∈ N ∧ 𝑦 ∈ N) ∧ (𝑧 ∈ N ∧ 𝑤 ∈ N) ∧ (𝑣 ∈ N ∧ 𝑢 ∈ N)) → (𝑥 ·N 𝑤) ∈ N)
51		mulclpi 7696	. . . . . 6 ⊢ ((𝑦 ∈ N ∧ 𝑧 ∈ N) → (𝑦 ·N 𝑧) ∈ N)
52	17, 31, 51	syl2anc 415	. . . . 5 ⊢ (((𝑥 ∈ N ∧ 𝑦 ∈ N) ∧ (𝑧 ∈ N ∧ 𝑤 ∈ N) ∧ (𝑣 ∈ N ∧ 𝑢 ∈ N)) → (𝑦 ·N 𝑧) ∈ N)
53		mulclpi 7696	. . . . . 6 ⊢ ((𝑢 ∈ N ∧ 𝑢 ∈ N) → (𝑢 ·N 𝑢) ∈ N)
54	20, 20, 53	syl2anc 415	. . . . 5 ⊢ (((𝑥 ∈ N ∧ 𝑦 ∈ N) ∧ (𝑧 ∈ N ∧ 𝑤 ∈ N) ∧ (𝑣 ∈ N ∧ 𝑢 ∈ N)) → (𝑢 ·N 𝑢) ∈ N)
55		ltmpig 7707	. . . . 5 ⊢ (((𝑥 ·N 𝑤) ∈ N ∧ (𝑦 ·N 𝑧) ∈ N ∧ (𝑢 ·N 𝑢) ∈ N) → ((𝑥 ·N 𝑤) <N (𝑦 ·N 𝑧) ↔ ((𝑢 ·N 𝑢) ·N (𝑥 ·N 𝑤)) <N ((𝑢 ·N 𝑢) ·N (𝑦 ·N 𝑧))))
56	50, 52, 54, 55	syl3anc 1278	. . . 4 ⊢ (((𝑥 ∈ N ∧ 𝑦 ∈ N) ∧ (𝑧 ∈ N ∧ 𝑤 ∈ N) ∧ (𝑣 ∈ N ∧ 𝑢 ∈ N)) → ((𝑥 ·N 𝑤) <N (𝑦 ·N 𝑧) ↔ ((𝑢 ·N 𝑢) ·N (𝑥 ·N 𝑤)) <N ((𝑢 ·N 𝑢) ·N (𝑦 ·N 𝑧))))
57		mulclpi 7696	. . . . . . 7 ⊢ (((𝑢 ·N 𝑥) ∈ N ∧ (𝑢 ·N 𝑤) ∈ N) → ((𝑢 ·N 𝑥) ·N (𝑢 ·N 𝑤)) ∈ N)
58	23, 36, 57	syl2anc 415	. . . . . 6 ⊢ (((𝑥 ∈ N ∧ 𝑦 ∈ N) ∧ (𝑧 ∈ N ∧ 𝑤 ∈ N) ∧ (𝑣 ∈ N ∧ 𝑢 ∈ N)) → ((𝑢 ·N 𝑥) ·N (𝑢 ·N 𝑤)) ∈ N)
59		mulclpi 7696	. . . . . . 7 ⊢ (((𝑢 ·N 𝑦) ∈ N ∧ (𝑢 ·N 𝑧) ∈ N) → ((𝑢 ·N 𝑦) ·N (𝑢 ·N 𝑧)) ∈ N)
60	26, 33, 59	syl2anc 415	. . . . . 6 ⊢ (((𝑥 ∈ N ∧ 𝑦 ∈ N) ∧ (𝑧 ∈ N ∧ 𝑤 ∈ N) ∧ (𝑣 ∈ N ∧ 𝑢 ∈ N)) → ((𝑢 ·N 𝑦) ·N (𝑢 ·N 𝑧)) ∈ N)
61		mulclpi 7696	. . . . . . 7 ⊢ (((𝑣 ·N 𝑦) ∈ N ∧ (𝑢 ·N 𝑤) ∈ N) → ((𝑣 ·N 𝑦) ·N (𝑢 ·N 𝑤)) ∈ N)
62	19, 36, 61	syl2anc 415	. . . . . 6 ⊢ (((𝑥 ∈ N ∧ 𝑦 ∈ N) ∧ (𝑧 ∈ N ∧ 𝑤 ∈ N) ∧ (𝑣 ∈ N ∧ 𝑢 ∈ N)) → ((𝑣 ·N 𝑦) ·N (𝑢 ·N 𝑤)) ∈ N)
63		ltapig 7706	. . . . . 6 ⊢ ((((𝑢 ·N 𝑥) ·N (𝑢 ·N 𝑤)) ∈ N ∧ ((𝑢 ·N 𝑦) ·N (𝑢 ·N 𝑧)) ∈ N ∧ ((𝑣 ·N 𝑦) ·N (𝑢 ·N 𝑤)) ∈ N) → (((𝑢 ·N 𝑥) ·N (𝑢 ·N 𝑤)) <N ((𝑢 ·N 𝑦) ·N (𝑢 ·N 𝑧)) ↔ (((𝑣 ·N 𝑦) ·N (𝑢 ·N 𝑤)) +N ((𝑢 ·N 𝑥) ·N (𝑢 ·N 𝑤))) <N (((𝑣 ·N 𝑦) ·N (𝑢 ·N 𝑤)) +N ((𝑢 ·N 𝑦) ·N (𝑢 ·N 𝑧)))))
64	58, 60, 62, 63	syl3anc 1278	. . . . 5 ⊢ (((𝑥 ∈ N ∧ 𝑦 ∈ N) ∧ (𝑧 ∈ N ∧ 𝑤 ∈ N) ∧ (𝑣 ∈ N ∧ 𝑢 ∈ N)) → (((𝑢 ·N 𝑥) ·N (𝑢 ·N 𝑤)) <N ((𝑢 ·N 𝑦) ·N (𝑢 ·N 𝑧)) ↔ (((𝑣 ·N 𝑦) ·N (𝑢 ·N 𝑤)) +N ((𝑢 ·N 𝑥) ·N (𝑢 ·N 𝑤))) <N (((𝑣 ·N 𝑦) ·N (𝑢 ·N 𝑤)) +N ((𝑢 ·N 𝑦) ·N (𝑢 ·N 𝑧)))))
65		mulcompig 7699	. . . . . . . 8 ⊢ ((𝑓 ∈ N ∧ 𝑔 ∈ N) → (𝑓 ·N 𝑔) = (𝑔 ·N 𝑓))
66	65	adantl 277	. . . . . . 7 ⊢ ((((𝑥 ∈ N ∧ 𝑦 ∈ N) ∧ (𝑧 ∈ N ∧ 𝑤 ∈ N) ∧ (𝑣 ∈ N ∧ 𝑢 ∈ N)) ∧ (𝑓 ∈ N ∧ 𝑔 ∈ N)) → (𝑓 ·N 𝑔) = (𝑔 ·N 𝑓))
67		mulasspig 7700	. . . . . . . 8 ⊢ ((𝑓 ∈ N ∧ 𝑔 ∈ N ∧ ℎ ∈ N) → ((𝑓 ·N 𝑔) ·N ℎ) = (𝑓 ·N (𝑔 ·N ℎ)))
68	67	adantl 277	. . . . . . 7 ⊢ ((((𝑥 ∈ N ∧ 𝑦 ∈ N) ∧ (𝑧 ∈ N ∧ 𝑤 ∈ N) ∧ (𝑣 ∈ N ∧ 𝑢 ∈ N)) ∧ (𝑓 ∈ N ∧ 𝑔 ∈ N ∧ ℎ ∈ N)) → ((𝑓 ·N 𝑔) ·N ℎ) = (𝑓 ·N (𝑔 ·N ℎ)))
69	20, 20, 21, 66, 68, 29, 28	caov4d 6274	. . . . . 6 ⊢ (((𝑥 ∈ N ∧ 𝑦 ∈ N) ∧ (𝑧 ∈ N ∧ 𝑤 ∈ N) ∧ (𝑣 ∈ N ∧ 𝑢 ∈ N)) → ((𝑢 ·N 𝑢) ·N (𝑥 ·N 𝑤)) = ((𝑢 ·N 𝑥) ·N (𝑢 ·N 𝑤)))
70	20, 20, 17, 66, 68, 31, 28	caov4d 6274	. . . . . 6 ⊢ (((𝑥 ∈ N ∧ 𝑦 ∈ N) ∧ (𝑧 ∈ N ∧ 𝑤 ∈ N) ∧ (𝑣 ∈ N ∧ 𝑢 ∈ N)) → ((𝑢 ·N 𝑢) ·N (𝑦 ·N 𝑧)) = ((𝑢 ·N 𝑦) ·N (𝑢 ·N 𝑧)))
71	69, 70	breq12d 4143	. . . . 5 ⊢ (((𝑥 ∈ N ∧ 𝑦 ∈ N) ∧ (𝑧 ∈ N ∧ 𝑤 ∈ N) ∧ (𝑣 ∈ N ∧ 𝑢 ∈ N)) → (((𝑢 ·N 𝑢) ·N (𝑥 ·N 𝑤)) <N ((𝑢 ·N 𝑢) ·N (𝑦 ·N 𝑧)) ↔ ((𝑢 ·N 𝑥) ·N (𝑢 ·N 𝑤)) <N ((𝑢 ·N 𝑦) ·N (𝑢 ·N 𝑧))))
72		distrpig 7701	. . . . . . . 8 ⊢ ((𝑓 ∈ N ∧ 𝑔 ∈ N ∧ ℎ ∈ N) → (𝑓 ·N (𝑔 +N ℎ)) = ((𝑓 ·N 𝑔) +N (𝑓 ·N ℎ)))
73	72	adantl 277	. . . . . . 7 ⊢ ((((𝑥 ∈ N ∧ 𝑦 ∈ N) ∧ (𝑧 ∈ N ∧ 𝑤 ∈ N) ∧ (𝑣 ∈ N ∧ 𝑢 ∈ N)) ∧ (𝑓 ∈ N ∧ 𝑔 ∈ N ∧ ℎ ∈ N)) → (𝑓 ·N (𝑔 +N ℎ)) = ((𝑓 ·N 𝑔) +N (𝑓 ·N ℎ)))
74	73, 19, 23, 36, 15, 66	caovdir2d 6266	. . . . . 6 ⊢ (((𝑥 ∈ N ∧ 𝑦 ∈ N) ∧ (𝑧 ∈ N ∧ 𝑤 ∈ N) ∧ (𝑣 ∈ N ∧ 𝑢 ∈ N)) → (((𝑣 ·N 𝑦) +N (𝑢 ·N 𝑥)) ·N (𝑢 ·N 𝑤)) = (((𝑣 ·N 𝑦) ·N (𝑢 ·N 𝑤)) +N ((𝑢 ·N 𝑥) ·N (𝑢 ·N 𝑤))))
75	73, 26, 30, 33	caovdid 6265	. . . . . . 7 ⊢ (((𝑥 ∈ N ∧ 𝑦 ∈ N) ∧ (𝑧 ∈ N ∧ 𝑤 ∈ N) ∧ (𝑣 ∈ N ∧ 𝑢 ∈ N)) → ((𝑢 ·N 𝑦) ·N ((𝑣 ·N 𝑤) +N (𝑢 ·N 𝑧))) = (((𝑢 ·N 𝑦) ·N (𝑣 ·N 𝑤)) +N ((𝑢 ·N 𝑦) ·N (𝑢 ·N 𝑧))))
76	20, 17, 16, 66, 68, 29, 28	caov411d 6275	. . . . . . . 8 ⊢ (((𝑥 ∈ N ∧ 𝑦 ∈ N) ∧ (𝑧 ∈ N ∧ 𝑤 ∈ N) ∧ (𝑣 ∈ N ∧ 𝑢 ∈ N)) → ((𝑢 ·N 𝑦) ·N (𝑣 ·N 𝑤)) = ((𝑣 ·N 𝑦) ·N (𝑢 ·N 𝑤)))
77	76	oveq1d 6100	. . . . . . 7 ⊢ (((𝑥 ∈ N ∧ 𝑦 ∈ N) ∧ (𝑧 ∈ N ∧ 𝑤 ∈ N) ∧ (𝑣 ∈ N ∧ 𝑢 ∈ N)) → (((𝑢 ·N 𝑦) ·N (𝑣 ·N 𝑤)) +N ((𝑢 ·N 𝑦) ·N (𝑢 ·N 𝑧))) = (((𝑣 ·N 𝑦) ·N (𝑢 ·N 𝑤)) +N ((𝑢 ·N 𝑦) ·N (𝑢 ·N 𝑧))))
78	75, 77	eqtrd 2271	. . . . . 6 ⊢ (((𝑥 ∈ N ∧ 𝑦 ∈ N) ∧ (𝑧 ∈ N ∧ 𝑤 ∈ N) ∧ (𝑣 ∈ N ∧ 𝑢 ∈ N)) → ((𝑢 ·N 𝑦) ·N ((𝑣 ·N 𝑤) +N (𝑢 ·N 𝑧))) = (((𝑣 ·N 𝑦) ·N (𝑢 ·N 𝑤)) +N ((𝑢 ·N 𝑦) ·N (𝑢 ·N 𝑧))))
79	74, 78	breq12d 4143	. . . . 5 ⊢ (((𝑥 ∈ N ∧ 𝑦 ∈ N) ∧ (𝑧 ∈ N ∧ 𝑤 ∈ N) ∧ (𝑣 ∈ N ∧ 𝑢 ∈ N)) → ((((𝑣 ·N 𝑦) +N (𝑢 ·N 𝑥)) ·N (𝑢 ·N 𝑤)) <N ((𝑢 ·N 𝑦) ·N ((𝑣 ·N 𝑤) +N (𝑢 ·N 𝑧))) ↔ (((𝑣 ·N 𝑦) ·N (𝑢 ·N 𝑤)) +N ((𝑢 ·N 𝑥) ·N (𝑢 ·N 𝑤))) <N (((𝑣 ·N 𝑦) ·N (𝑢 ·N 𝑤)) +N ((𝑢 ·N 𝑦) ·N (𝑢 ·N 𝑧)))))
80	64, 71, 79	3bitr4d 220	. . . 4 ⊢ (((𝑥 ∈ N ∧ 𝑦 ∈ N) ∧ (𝑧 ∈ N ∧ 𝑤 ∈ N) ∧ (𝑣 ∈ N ∧ 𝑢 ∈ N)) → (((𝑢 ·N 𝑢) ·N (𝑥 ·N 𝑤)) <N ((𝑢 ·N 𝑢) ·N (𝑦 ·N 𝑧)) ↔ (((𝑣 ·N 𝑦) +N (𝑢 ·N 𝑥)) ·N (𝑢 ·N 𝑤)) <N ((𝑢 ·N 𝑦) ·N ((𝑣 ·N 𝑤) +N (𝑢 ·N 𝑧)))))
81	48, 56, 80	3bitrd 214	. . 3 ⊢ (((𝑥 ∈ N ∧ 𝑦 ∈ N) ∧ (𝑧 ∈ N ∧ 𝑤 ∈ N) ∧ (𝑣 ∈ N ∧ 𝑢 ∈ N)) → ([⟨𝑥, 𝑦⟩] ~Q <Q [⟨𝑧, 𝑤⟩] ~Q ↔ (((𝑣 ·N 𝑦) +N (𝑢 ·N 𝑥)) ·N (𝑢 ·N 𝑤)) <N ((𝑢 ·N 𝑦) ·N ((𝑣 ·N 𝑤) +N (𝑢 ·N 𝑧)))))
82	38, 46, 81	3bitr4rd 221	. 2 ⊢ (((𝑥 ∈ N ∧ 𝑦 ∈ N) ∧ (𝑧 ∈ N ∧ 𝑤 ∈ N) ∧ (𝑣 ∈ N ∧ 𝑢 ∈ N)) → ([⟨𝑥, 𝑦⟩] ~Q <Q [⟨𝑧, 𝑤⟩] ~Q ↔ ([⟨𝑣, 𝑢⟩] ~Q +Q [⟨𝑥, 𝑦⟩] ~Q ) <Q ([⟨𝑣, 𝑢⟩] ~Q +Q [⟨𝑧, 𝑤⟩] ~Q )))
83	1, 5, 9, 13, 82	3ecoptocl 6898	1 ⊢ ((𝐴 ∈ Q ∧ 𝐵 ∈ Q ∧ 𝐶 ∈ Q) → (𝐴 <Q 𝐵 ↔ (𝐶 +Q 𝐴) <Q (𝐶 +Q 𝐵)))

This proof depends on syntax axioms:   → wi 4   ∧ wa 104   ↔ wb 105   ∧ w3a 1009   = wceq 1402   ∈ wcel 2209  ⟨cop 3712   class class class wbr 4130  (class class class)co 6085  [cec 6805  Ncnpi 7640   +_N cpli 7641   ·_N cmi 7642   <_N clti 7643   ~_Q ceq 7647  Qcnq 7648   +_Q cplq 7650   <_Q cltq 7653

This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-in1 623  ax-in2 624  ax-io 721  ax-5 1500  ax-7 1501  ax-gen 1502  ax-ie1 1546  ax-ie2 1547  ax-8 1557  ax-10 1558  ax-11 1559  ax-i12 1560  ax-bndl 1562  ax-4 1563  ax-17 1579  ax-i9 1583  ax-ial 1587  ax-i5r 1588  ax-14 2212  ax-ext 2220  ax-coll 4246  ax-sep 4249  ax-nul 4259  ax-pow 4311  ax-pr 4346  ax-un 4578  ax-setind 4684  ax-iinf 4735

This proof depends on definitions:  df-bi 117  df-dc 847  df-3or 1010  df-3an 1011  df-tru 1405  df-fal 1408  df-nf 1514  df-sb 1816  df-eu 2089  df-mo 2090  df-clab 2225  df-cleq 2231  df-clel 2234  df-nfc 2381  df-ne 2421  df-ral 2533  df-rex 2534  df-reu 2535  df-rab 2537  df-v 2823  df-sbc 3052  df-csb 3148  df-dif 3222  df-un 3224  df-in 3226  df-ss 3233  df-nul 3521  df-pw 3690  df-sn 3715  df-pr 3716  df-op 3718  df-uni 3936  df-int 3971  df-iun 4014  df-br 4131  df-opab 4193  df-mpt 4194  df-tr 4230  df-eprel 4434  df-id 4438  df-iord 4511  df-on 4513  df-suc 4516  df-iom 4738  df-xp 4780  df-rel 4781  df-cnv 4782  df-co 4783  df-dm 4784  df-rn 4785  df-res 4786  df-ima 4787  df-iota 5337  df-fun 5379  df-fn 5380  df-f 5381  df-f1 5382  df-fo 5383  df-f1o 5384  df-fv 5385  df-ov 6088  df-oprab 6089  df-mpo 6090  df-1st 6374  df-2nd 6375  df-recs 6576  df-irdg 6641  df-oadd 6691  df-omul 6692  df-er 6807  df-ec 6809  df-qs 6813  df-ni 7672  df-pli 7673  df-mi 7674  df-lti 7675  df-plpq 7712  df-enq 7715  df-nqqs 7716  df-plqqs 7717  df-ltnqqs 7721

This theorem is used by:  ltanqi  7770  lt2addnq  7772  ltaddnq  7775  prarloclemlt  7861  prarloclemcalc  7870  addlocprlemgt  7902  addclpr  7905  prmuloclemcalc  7933  distrlem4prl  7952  distrlem4pru  7953  ltexprlemopl  7969  ltexprlemopu  7971  ltexprlemdisj  7974  ltexprlemloc  7975  ltexprlemfl  7977  ltexprlemfu  7979  aptiprleml  8007  aptiprlemu  8008  cauappcvgprlemopl  8014  cauappcvgprlemlol  8015  cauappcvgprlemdisj  8019  cauappcvgprlemloc  8020  cauappcvgprlemladdfu  8022  cauappcvgprlemladdru  8024  cauappcvgprlemladdrl  8025  cauappcvgprlem1  8027  caucvgprlemnkj  8034  caucvgprlemnbj  8035  caucvgprlemm  8036  caucvgprlemopl  8037  caucvgprlemlol  8038  caucvgprlemloc  8043  caucvgprlemladdfu  8045  caucvgprlemladdrl  8046  caucvgprprlemml  8062  caucvgprprlemopl  8065  caucvgprprlemlol  8066