Theorem smo11 7727

Description: A strictly monotone ordinal function is one-to-one. (Contributed by Mario Carneiro, 28-Feb-2013.)

Assertion

Ref	Expression
smo11	⊢ ((𝐹:𝐴⟶𝐵 ∧ Smo 𝐹) → 𝐹:𝐴–1-1→𝐵)

Proof of Theorem smo11

Dummy variables 𝑤 𝑥 𝑦 𝑧 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		simpl 476	. 2 ⊢ ((𝐹:𝐴⟶𝐵 ∧ Smo 𝐹) → 𝐹:𝐴⟶𝐵)
2		ffn 6278	. . 3 ⊢ (𝐹:𝐴⟶𝐵 → 𝐹 Fn 𝐴)
3		smodm2 7718	. . . . . . 7 ⊢ ((𝐹 Fn 𝐴 ∧ Smo 𝐹) → Ord 𝐴)
4		ordelord 5985	. . . . . . . 8 ⊢ ((Ord 𝐴 ∧ 𝑧 ∈ 𝐴) → Ord 𝑧)
5	4	ex 403	. . . . . . 7 ⊢ (Ord 𝐴 → (𝑧 ∈ 𝐴 → Ord 𝑧))
6	3, 5	syl 17	. . . . . 6 ⊢ ((𝐹 Fn 𝐴 ∧ Smo 𝐹) → (𝑧 ∈ 𝐴 → Ord 𝑧))
7		ordelord 5985	. . . . . . . 8 ⊢ ((Ord 𝐴 ∧ 𝑤 ∈ 𝐴) → Ord 𝑤)
8	7	ex 403	. . . . . . 7 ⊢ (Ord 𝐴 → (𝑤 ∈ 𝐴 → Ord 𝑤))
9	3, 8	syl 17	. . . . . 6 ⊢ ((𝐹 Fn 𝐴 ∧ Smo 𝐹) → (𝑤 ∈ 𝐴 → Ord 𝑤))
10	6, 9	anim12d 602	. . . . 5 ⊢ ((𝐹 Fn 𝐴 ∧ Smo 𝐹) → ((𝑧 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴) → (Ord 𝑧 ∧ Ord 𝑤)))
11		ordtri3or 5995	. . . . . . 7 ⊢ ((Ord 𝑧 ∧ Ord 𝑤) → (𝑧 ∈ 𝑤 ∨ 𝑧 = 𝑤 ∨ 𝑤 ∈ 𝑧))
12		simp1rr 1324	. . . . . . . . . . 11 ⊢ ((((𝐹 Fn 𝐴 ∧ Smo 𝐹) ∧ (𝑧 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴)) ∧ 𝑧 ∈ 𝑤 ∧ (𝐹‘𝑧) = (𝐹‘𝑤)) → 𝑤 ∈ 𝐴)
13		smoel2 7726	. . . . . . . . . . . . . 14 ⊢ (((𝐹 Fn 𝐴 ∧ Smo 𝐹) ∧ (𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝑥)) → (𝐹‘𝑦) ∈ (𝐹‘𝑥))
14	13	ralrimivva 3180	. . . . . . . . . . . . 13 ⊢ ((𝐹 Fn 𝐴 ∧ Smo 𝐹) → ∀𝑥 ∈ 𝐴 ∀𝑦 ∈ 𝑥 (𝐹‘𝑦) ∈ (𝐹‘𝑥))
15	14	adantr 474	. . . . . . . . . . . 12 ⊢ (((𝐹 Fn 𝐴 ∧ Smo 𝐹) ∧ (𝑧 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴)) → ∀𝑥 ∈ 𝐴 ∀𝑦 ∈ 𝑥 (𝐹‘𝑦) ∈ (𝐹‘𝑥))
16	15	3ad2ant1 1167	. . . . . . . . . . 11 ⊢ ((((𝐹 Fn 𝐴 ∧ Smo 𝐹) ∧ (𝑧 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴)) ∧ 𝑧 ∈ 𝑤 ∧ (𝐹‘𝑧) = (𝐹‘𝑤)) → ∀𝑥 ∈ 𝐴 ∀𝑦 ∈ 𝑥 (𝐹‘𝑦) ∈ (𝐹‘𝑥))
17		simp2 1171	. . . . . . . . . . 11 ⊢ ((((𝐹 Fn 𝐴 ∧ Smo 𝐹) ∧ (𝑧 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴)) ∧ 𝑧 ∈ 𝑤 ∧ (𝐹‘𝑧) = (𝐹‘𝑤)) → 𝑧 ∈ 𝑤)
18		simp3 1172	. . . . . . . . . . 11 ⊢ ((((𝐹 Fn 𝐴 ∧ Smo 𝐹) ∧ (𝑧 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴)) ∧ 𝑧 ∈ 𝑤 ∧ (𝐹‘𝑧) = (𝐹‘𝑤)) → (𝐹‘𝑧) = (𝐹‘𝑤))
19		fveq2 6433	. . . . . . . . . . . . . . . . 17 ⊢ (𝑥 = 𝑤 → (𝐹‘𝑥) = (𝐹‘𝑤))
20	19	eleq2d 2892	. . . . . . . . . . . . . . . 16 ⊢ (𝑥 = 𝑤 → ((𝐹‘𝑦) ∈ (𝐹‘𝑥) ↔ (𝐹‘𝑦) ∈ (𝐹‘𝑤)))
21	20	raleqbi1dv 3358	. . . . . . . . . . . . . . 15 ⊢ (𝑥 = 𝑤 → (∀𝑦 ∈ 𝑥 (𝐹‘𝑦) ∈ (𝐹‘𝑥) ↔ ∀𝑦 ∈ 𝑤 (𝐹‘𝑦) ∈ (𝐹‘𝑤)))
22	21	rspcv 3522	. . . . . . . . . . . . . 14 ⊢ (𝑤 ∈ 𝐴 → (∀𝑥 ∈ 𝐴 ∀𝑦 ∈ 𝑥 (𝐹‘𝑦) ∈ (𝐹‘𝑥) → ∀𝑦 ∈ 𝑤 (𝐹‘𝑦) ∈ (𝐹‘𝑤)))
23		fveq2 6433	. . . . . . . . . . . . . . . 16 ⊢ (𝑦 = 𝑧 → (𝐹‘𝑦) = (𝐹‘𝑧))
24	23	eleq1d 2891	. . . . . . . . . . . . . . 15 ⊢ (𝑦 = 𝑧 → ((𝐹‘𝑦) ∈ (𝐹‘𝑤) ↔ (𝐹‘𝑧) ∈ (𝐹‘𝑤)))
25	24	rspccv 3523	. . . . . . . . . . . . . 14 ⊢ (∀𝑦 ∈ 𝑤 (𝐹‘𝑦) ∈ (𝐹‘𝑤) → (𝑧 ∈ 𝑤 → (𝐹‘𝑧) ∈ (𝐹‘𝑤)))
26	22, 25	syl6 35	. . . . . . . . . . . . 13 ⊢ (𝑤 ∈ 𝐴 → (∀𝑥 ∈ 𝐴 ∀𝑦 ∈ 𝑥 (𝐹‘𝑦) ∈ (𝐹‘𝑥) → (𝑧 ∈ 𝑤 → (𝐹‘𝑧) ∈ (𝐹‘𝑤))))
27	26	3imp 1141	. . . . . . . . . . . 12 ⊢ ((𝑤 ∈ 𝐴 ∧ ∀𝑥 ∈ 𝐴 ∀𝑦 ∈ 𝑥 (𝐹‘𝑦) ∈ (𝐹‘𝑥) ∧ 𝑧 ∈ 𝑤) → (𝐹‘𝑧) ∈ (𝐹‘𝑤))
28		eleq1 2894	. . . . . . . . . . . . 13 ⊢ ((𝐹‘𝑧) = (𝐹‘𝑤) → ((𝐹‘𝑧) ∈ (𝐹‘𝑤) ↔ (𝐹‘𝑤) ∈ (𝐹‘𝑤)))
29	28	biimpac 472	. . . . . . . . . . . 12 ⊢ (((𝐹‘𝑧) ∈ (𝐹‘𝑤) ∧ (𝐹‘𝑧) = (𝐹‘𝑤)) → (𝐹‘𝑤) ∈ (𝐹‘𝑤))
30	27, 29	sylan 575	. . . . . . . . . . 11 ⊢ (((𝑤 ∈ 𝐴 ∧ ∀𝑥 ∈ 𝐴 ∀𝑦 ∈ 𝑥 (𝐹‘𝑦) ∈ (𝐹‘𝑥) ∧ 𝑧 ∈ 𝑤) ∧ (𝐹‘𝑧) = (𝐹‘𝑤)) → (𝐹‘𝑤) ∈ (𝐹‘𝑤))
31	12, 16, 17, 18, 30	syl31anc 1496	. . . . . . . . . 10 ⊢ ((((𝐹 Fn 𝐴 ∧ Smo 𝐹) ∧ (𝑧 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴)) ∧ 𝑧 ∈ 𝑤 ∧ (𝐹‘𝑧) = (𝐹‘𝑤)) → (𝐹‘𝑤) ∈ (𝐹‘𝑤))
32		smofvon2 7719	. . . . . . . . . . . . 13 ⊢ (Smo 𝐹 → (𝐹‘𝑤) ∈ On)
33		eloni 5973	. . . . . . . . . . . . 13 ⊢ ((𝐹‘𝑤) ∈ On → Ord (𝐹‘𝑤))
34		ordirr 5981	. . . . . . . . . . . . 13 ⊢ (Ord (𝐹‘𝑤) → ¬ (𝐹‘𝑤) ∈ (𝐹‘𝑤))
35	32, 33, 34	3syl 18	. . . . . . . . . . . 12 ⊢ (Smo 𝐹 → ¬ (𝐹‘𝑤) ∈ (𝐹‘𝑤))
36	35	ad2antlr 718	. . . . . . . . . . 11 ⊢ (((𝐹 Fn 𝐴 ∧ Smo 𝐹) ∧ (𝑧 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴)) → ¬ (𝐹‘𝑤) ∈ (𝐹‘𝑤))
37	36	3ad2ant1 1167	. . . . . . . . . 10 ⊢ ((((𝐹 Fn 𝐴 ∧ Smo 𝐹) ∧ (𝑧 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴)) ∧ 𝑧 ∈ 𝑤 ∧ (𝐹‘𝑧) = (𝐹‘𝑤)) → ¬ (𝐹‘𝑤) ∈ (𝐹‘𝑤))
38	31, 37	pm2.21dd 187	. . . . . . . . 9 ⊢ ((((𝐹 Fn 𝐴 ∧ Smo 𝐹) ∧ (𝑧 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴)) ∧ 𝑧 ∈ 𝑤 ∧ (𝐹‘𝑧) = (𝐹‘𝑤)) → 𝑧 = 𝑤)
39	38	3exp 1152	. . . . . . . 8 ⊢ (((𝐹 Fn 𝐴 ∧ Smo 𝐹) ∧ (𝑧 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴)) → (𝑧 ∈ 𝑤 → ((𝐹‘𝑧) = (𝐹‘𝑤) → 𝑧 = 𝑤)))
40		ax-1 6	. . . . . . . . 9 ⊢ (𝑧 = 𝑤 → ((𝐹‘𝑧) = (𝐹‘𝑤) → 𝑧 = 𝑤))
41	40	a1i 11	. . . . . . . 8 ⊢ (((𝐹 Fn 𝐴 ∧ Smo 𝐹) ∧ (𝑧 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴)) → (𝑧 = 𝑤 → ((𝐹‘𝑧) = (𝐹‘𝑤) → 𝑧 = 𝑤)))
42		simp1rl 1323	. . . . . . . . . . 11 ⊢ ((((𝐹 Fn 𝐴 ∧ Smo 𝐹) ∧ (𝑧 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴)) ∧ 𝑤 ∈ 𝑧 ∧ (𝐹‘𝑧) = (𝐹‘𝑤)) → 𝑧 ∈ 𝐴)
43	15	3ad2ant1 1167	. . . . . . . . . . 11 ⊢ ((((𝐹 Fn 𝐴 ∧ Smo 𝐹) ∧ (𝑧 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴)) ∧ 𝑤 ∈ 𝑧 ∧ (𝐹‘𝑧) = (𝐹‘𝑤)) → ∀𝑥 ∈ 𝐴 ∀𝑦 ∈ 𝑥 (𝐹‘𝑦) ∈ (𝐹‘𝑥))
44		simp2 1171	. . . . . . . . . . 11 ⊢ ((((𝐹 Fn 𝐴 ∧ Smo 𝐹) ∧ (𝑧 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴)) ∧ 𝑤 ∈ 𝑧 ∧ (𝐹‘𝑧) = (𝐹‘𝑤)) → 𝑤 ∈ 𝑧)
45		simp3 1172	. . . . . . . . . . 11 ⊢ ((((𝐹 Fn 𝐴 ∧ Smo 𝐹) ∧ (𝑧 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴)) ∧ 𝑤 ∈ 𝑧 ∧ (𝐹‘𝑧) = (𝐹‘𝑤)) → (𝐹‘𝑧) = (𝐹‘𝑤))
46		fveq2 6433	. . . . . . . . . . . . . . . . 17 ⊢ (𝑥 = 𝑧 → (𝐹‘𝑥) = (𝐹‘𝑧))
47	46	eleq2d 2892	. . . . . . . . . . . . . . . 16 ⊢ (𝑥 = 𝑧 → ((𝐹‘𝑦) ∈ (𝐹‘𝑥) ↔ (𝐹‘𝑦) ∈ (𝐹‘𝑧)))
48	47	raleqbi1dv 3358	. . . . . . . . . . . . . . 15 ⊢ (𝑥 = 𝑧 → (∀𝑦 ∈ 𝑥 (𝐹‘𝑦) ∈ (𝐹‘𝑥) ↔ ∀𝑦 ∈ 𝑧 (𝐹‘𝑦) ∈ (𝐹‘𝑧)))
49	48	rspcv 3522	. . . . . . . . . . . . . 14 ⊢ (𝑧 ∈ 𝐴 → (∀𝑥 ∈ 𝐴 ∀𝑦 ∈ 𝑥 (𝐹‘𝑦) ∈ (𝐹‘𝑥) → ∀𝑦 ∈ 𝑧 (𝐹‘𝑦) ∈ (𝐹‘𝑧)))
50		fveq2 6433	. . . . . . . . . . . . . . . 16 ⊢ (𝑦 = 𝑤 → (𝐹‘𝑦) = (𝐹‘𝑤))
51	50	eleq1d 2891	. . . . . . . . . . . . . . 15 ⊢ (𝑦 = 𝑤 → ((𝐹‘𝑦) ∈ (𝐹‘𝑧) ↔ (𝐹‘𝑤) ∈ (𝐹‘𝑧)))
52	51	rspccv 3523	. . . . . . . . . . . . . 14 ⊢ (∀𝑦 ∈ 𝑧 (𝐹‘𝑦) ∈ (𝐹‘𝑧) → (𝑤 ∈ 𝑧 → (𝐹‘𝑤) ∈ (𝐹‘𝑧)))
53	49, 52	syl6 35	. . . . . . . . . . . . 13 ⊢ (𝑧 ∈ 𝐴 → (∀𝑥 ∈ 𝐴 ∀𝑦 ∈ 𝑥 (𝐹‘𝑦) ∈ (𝐹‘𝑥) → (𝑤 ∈ 𝑧 → (𝐹‘𝑤) ∈ (𝐹‘𝑧))))
54	53	3imp 1141	. . . . . . . . . . . 12 ⊢ ((𝑧 ∈ 𝐴 ∧ ∀𝑥 ∈ 𝐴 ∀𝑦 ∈ 𝑥 (𝐹‘𝑦) ∈ (𝐹‘𝑥) ∧ 𝑤 ∈ 𝑧) → (𝐹‘𝑤) ∈ (𝐹‘𝑧))
55		eleq2 2895	. . . . . . . . . . . . 13 ⊢ ((𝐹‘𝑧) = (𝐹‘𝑤) → ((𝐹‘𝑤) ∈ (𝐹‘𝑧) ↔ (𝐹‘𝑤) ∈ (𝐹‘𝑤)))
56	55	biimpac 472	. . . . . . . . . . . 12 ⊢ (((𝐹‘𝑤) ∈ (𝐹‘𝑧) ∧ (𝐹‘𝑧) = (𝐹‘𝑤)) → (𝐹‘𝑤) ∈ (𝐹‘𝑤))
57	54, 56	sylan 575	. . . . . . . . . . 11 ⊢ (((𝑧 ∈ 𝐴 ∧ ∀𝑥 ∈ 𝐴 ∀𝑦 ∈ 𝑥 (𝐹‘𝑦) ∈ (𝐹‘𝑥) ∧ 𝑤 ∈ 𝑧) ∧ (𝐹‘𝑧) = (𝐹‘𝑤)) → (𝐹‘𝑤) ∈ (𝐹‘𝑤))
58	42, 43, 44, 45, 57	syl31anc 1496	. . . . . . . . . 10 ⊢ ((((𝐹 Fn 𝐴 ∧ Smo 𝐹) ∧ (𝑧 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴)) ∧ 𝑤 ∈ 𝑧 ∧ (𝐹‘𝑧) = (𝐹‘𝑤)) → (𝐹‘𝑤) ∈ (𝐹‘𝑤))
59	36	3ad2ant1 1167	. . . . . . . . . 10 ⊢ ((((𝐹 Fn 𝐴 ∧ Smo 𝐹) ∧ (𝑧 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴)) ∧ 𝑤 ∈ 𝑧 ∧ (𝐹‘𝑧) = (𝐹‘𝑤)) → ¬ (𝐹‘𝑤) ∈ (𝐹‘𝑤))
60	58, 59	pm2.21dd 187	. . . . . . . . 9 ⊢ ((((𝐹 Fn 𝐴 ∧ Smo 𝐹) ∧ (𝑧 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴)) ∧ 𝑤 ∈ 𝑧 ∧ (𝐹‘𝑧) = (𝐹‘𝑤)) → 𝑧 = 𝑤)
61	60	3exp 1152	. . . . . . . 8 ⊢ (((𝐹 Fn 𝐴 ∧ Smo 𝐹) ∧ (𝑧 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴)) → (𝑤 ∈ 𝑧 → ((𝐹‘𝑧) = (𝐹‘𝑤) → 𝑧 = 𝑤)))
62	39, 41, 61	3jaod 1557	. . . . . . 7 ⊢ (((𝐹 Fn 𝐴 ∧ Smo 𝐹) ∧ (𝑧 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴)) → ((𝑧 ∈ 𝑤 ∨ 𝑧 = 𝑤 ∨ 𝑤 ∈ 𝑧) → ((𝐹‘𝑧) = (𝐹‘𝑤) → 𝑧 = 𝑤)))
63	11, 62	syl5 34	. . . . . 6 ⊢ (((𝐹 Fn 𝐴 ∧ Smo 𝐹) ∧ (𝑧 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴)) → ((Ord 𝑧 ∧ Ord 𝑤) → ((𝐹‘𝑧) = (𝐹‘𝑤) → 𝑧 = 𝑤)))
64	63	ex 403	. . . . 5 ⊢ ((𝐹 Fn 𝐴 ∧ Smo 𝐹) → ((𝑧 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴) → ((Ord 𝑧 ∧ Ord 𝑤) → ((𝐹‘𝑧) = (𝐹‘𝑤) → 𝑧 = 𝑤))))
65	10, 64	mpdd 43	. . . 4 ⊢ ((𝐹 Fn 𝐴 ∧ Smo 𝐹) → ((𝑧 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴) → ((𝐹‘𝑧) = (𝐹‘𝑤) → 𝑧 = 𝑤)))
66	65	ralrimivv 3179	. . 3 ⊢ ((𝐹 Fn 𝐴 ∧ Smo 𝐹) → ∀𝑧 ∈ 𝐴 ∀𝑤 ∈ 𝐴 ((𝐹‘𝑧) = (𝐹‘𝑤) → 𝑧 = 𝑤))
67	2, 66	sylan 575	. 2 ⊢ ((𝐹:𝐴⟶𝐵 ∧ Smo 𝐹) → ∀𝑧 ∈ 𝐴 ∀𝑤 ∈ 𝐴 ((𝐹‘𝑧) = (𝐹‘𝑤) → 𝑧 = 𝑤))
68		dff13 6767	. 2 ⊢ (𝐹:𝐴–1-1→𝐵 ↔ (𝐹:𝐴⟶𝐵 ∧ ∀𝑧 ∈ 𝐴 ∀𝑤 ∈ 𝐴 ((𝐹‘𝑧) = (𝐹‘𝑤) → 𝑧 = 𝑤)))
69	1, 67, 68	sylanbrc 578	1 ⊢ ((𝐹:𝐴⟶𝐵 ∧ Smo 𝐹) → 𝐹:𝐴–1-1→𝐵)

Syntax hints:  ¬ wn 3   → wi 4   ∧ wa 386   ∨ w3o 1110   ∧ w3a 1111   = wceq 1656   ∈ wcel 2164  ∀wral 3117  Ord word 5962  Oncon0 5963   Fn wfn 6118  ⟶wf 6119  –1-1→wf1 6120  ‘cfv 6123  Smo wsmo 7708

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1894  ax-4 1908  ax-5 2009  ax-6 2075  ax-7 2112  ax-8 2166  ax-9 2173  ax-10 2192  ax-11 2207  ax-12 2220  ax-13 2389  ax-ext 2803  ax-sep 5005  ax-nul 5013  ax-pow 5065  ax-pr 5127

This theorem depends on definitions:  df-bi 199  df-an 387  df-or 879  df-3or 1112  df-3an 1113  df-tru 1660  df-ex 1879  df-nf 1883  df-sb 2068  df-mo 2605  df-eu 2640  df-clab 2812  df-cleq 2818  df-clel 2821  df-nfc 2958  df-ne 3000  df-ral 3122  df-rex 3123  df-rab 3126  df-v 3416  df-sbc 3663  df-dif 3801  df-un 3803  df-in 3805  df-ss 3812  df-pss 3814  df-nul 4145  df-if 4307  df-pw 4380  df-sn 4398  df-pr 4400  df-op 4404  df-uni 4659  df-br 4874  df-opab 4936  df-tr 4976  df-id 5250  df-eprel 5255  df-po 5263  df-so 5264  df-fr 5301  df-we 5303  df-xp 5348  df-rel 5349  df-cnv 5350  df-co 5351  df-dm 5352  df-rn 5353  df-ord 5966  df-on 5967  df-iota 6086  df-fun 6125  df-fn 6126  df-f 6127  df-f1 6128  df-fv 6131  df-smo 7709

This theorem is referenced by:  smoiso2  7732  alephf1ALT  9239