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Theorem gchhar 10674

Description: A "local" form of gchac 10676. If 𝐴 and 𝒫 𝐴 are GCH-sets, then the Hartogs number of 𝐴 is 𝒫 𝐴 (so 𝒫 𝐴 and a fortiori 𝐴 are well-orderable). The proof is due to Specker. Theorem 2.1 of [KanamoriPincus] p. 419. (Contributed by Mario Carneiro, 31-May-2015.)

**Assertion**
Ref	Expression
gchhar	⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → (har‘𝐴) ≈ 𝒫 𝐴)

**Proof of Theorem gchhar**
Step	Hyp	Ref	Expression
1		harcl 9554	. . . 4 ⊢ (har‘𝐴) ∈ On
2		simp3 1139	. . . 4 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → 𝒫 𝐴 ∈ GCH)
3		djudoml 10179	. . . 4 ⊢ (((har‘𝐴) ∈ On ∧ 𝒫 𝐴 ∈ GCH) → (har‘𝐴) ≼ ((har‘𝐴) ⊔ 𝒫 𝐴))
4	1, 2, 3	sylancr 588	. . 3 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → (har‘𝐴) ≼ ((har‘𝐴) ⊔ 𝒫 𝐴))
5		domnsym 9099	. . . . . . . . 9 ⊢ (ω ≼ 𝐴 → ¬ 𝐴 ≺ ω)
6	5	3ad2ant1 1134	. . . . . . . 8 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → ¬ 𝐴 ≺ ω)
7		isfinite 9647	. . . . . . . 8 ⊢ (𝐴 ∈ Fin ↔ 𝐴 ≺ ω)
8	6, 7	sylnibr 329	. . . . . . 7 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → ¬ 𝐴 ∈ Fin)
9		pwfi 9178	. . . . . . 7 ⊢ (𝐴 ∈ Fin ↔ 𝒫 𝐴 ∈ Fin)
10	8, 9	sylnib 328	. . . . . 6 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → ¬ 𝒫 𝐴 ∈ Fin)
11		djudoml 10179	. . . . . . 7 ⊢ ((𝒫 𝐴 ∈ GCH ∧ (har‘𝐴) ∈ On) → 𝒫 𝐴 ≼ (𝒫 𝐴 ⊔ (har‘𝐴)))
12	2, 1, 11	sylancl 587	. . . . . 6 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → 𝒫 𝐴 ≼ (𝒫 𝐴 ⊔ (har‘𝐴)))
13		fvexd 6907	. . . . . . . . 9 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → (har‘𝐴) ∈ V)
14		djuex 9903	. . . . . . . . 9 ⊢ ((𝒫 𝐴 ∈ GCH ∧ (har‘𝐴) ∈ V) → (𝒫 𝐴 ⊔ (har‘𝐴)) ∈ V)
15	2, 13, 14	syl2anc 585	. . . . . . . 8 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → (𝒫 𝐴 ⊔ (har‘𝐴)) ∈ V)
16		canth2g 9131	. . . . . . . 8 ⊢ ((𝒫 𝐴 ⊔ (har‘𝐴)) ∈ V → (𝒫 𝐴 ⊔ (har‘𝐴)) ≺ 𝒫 (𝒫 𝐴 ⊔ (har‘𝐴)))
17	15, 16	syl 17	. . . . . . 7 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → (𝒫 𝐴 ⊔ (har‘𝐴)) ≺ 𝒫 (𝒫 𝐴 ⊔ (har‘𝐴)))
18		pwdjuen 10176	. . . . . . . . 9 ⊢ ((𝒫 𝐴 ∈ GCH ∧ (har‘𝐴) ∈ On) → 𝒫 (𝒫 𝐴 ⊔ (har‘𝐴)) ≈ (𝒫 𝒫 𝐴 × 𝒫 (har‘𝐴)))
19	2, 1, 18	sylancl 587	. . . . . . . 8 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → 𝒫 (𝒫 𝐴 ⊔ (har‘𝐴)) ≈ (𝒫 𝒫 𝐴 × 𝒫 (har‘𝐴)))
20	2	pwexd 5378	. . . . . . . . . 10 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → 𝒫 𝒫 𝐴 ∈ V)
21		simp2 1138	. . . . . . . . . . 11 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → 𝐴 ∈ GCH)
22		harwdom 9586	. . . . . . . . . . 11 ⊢ (𝐴 ∈ GCH → (har‘𝐴) ≼^* 𝒫 (𝐴 × 𝐴))
23		wdompwdom 9573	. . . . . . . . . . 11 ⊢ ((har‘𝐴) ≼^* 𝒫 (𝐴 × 𝐴) → 𝒫 (har‘𝐴) ≼ 𝒫 𝒫 (𝐴 × 𝐴))
24	21, 22, 23	3syl 18	. . . . . . . . . 10 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → 𝒫 (har‘𝐴) ≼ 𝒫 𝒫 (𝐴 × 𝐴))
25		xpdom2g 9068	. . . . . . . . . 10 ⊢ ((𝒫 𝒫 𝐴 ∈ V ∧ 𝒫 (har‘𝐴) ≼ 𝒫 𝒫 (𝐴 × 𝐴)) → (𝒫 𝒫 𝐴 × 𝒫 (har‘𝐴)) ≼ (𝒫 𝒫 𝐴 × 𝒫 𝒫 (𝐴 × 𝐴)))
26	20, 24, 25	syl2anc 585	. . . . . . . . 9 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → (𝒫 𝒫 𝐴 × 𝒫 (har‘𝐴)) ≼ (𝒫 𝒫 𝐴 × 𝒫 𝒫 (𝐴 × 𝐴)))
27	21, 21	xpexd 7738	. . . . . . . . . . . . 13 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → (𝐴 × 𝐴) ∈ V)
28	27	pwexd 5378	. . . . . . . . . . . 12 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → 𝒫 (𝐴 × 𝐴) ∈ V)
29		pwdjuen 10176	. . . . . . . . . . . 12 ⊢ ((𝒫 𝐴 ∈ GCH ∧ 𝒫 (𝐴 × 𝐴) ∈ V) → 𝒫 (𝒫 𝐴 ⊔ 𝒫 (𝐴 × 𝐴)) ≈ (𝒫 𝒫 𝐴 × 𝒫 𝒫 (𝐴 × 𝐴)))
30	2, 28, 29	syl2anc 585	. . . . . . . . . . 11 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → 𝒫 (𝒫 𝐴 ⊔ 𝒫 (𝐴 × 𝐴)) ≈ (𝒫 𝒫 𝐴 × 𝒫 𝒫 (𝐴 × 𝐴)))
31	30	ensymd 9001	. . . . . . . . . 10 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → (𝒫 𝒫 𝐴 × 𝒫 𝒫 (𝐴 × 𝐴)) ≈ 𝒫 (𝒫 𝐴 ⊔ 𝒫 (𝐴 × 𝐴)))
32		enrefg 8980	. . . . . . . . . . . . . 14 ⊢ (𝒫 𝐴 ∈ GCH → 𝒫 𝐴 ≈ 𝒫 𝐴)
33	2, 32	syl 17	. . . . . . . . . . . . 13 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → 𝒫 𝐴 ≈ 𝒫 𝐴)
34		gchxpidm 10664	. . . . . . . . . . . . . . 15 ⊢ ((𝐴 ∈ GCH ∧ ¬ 𝐴 ∈ Fin) → (𝐴 × 𝐴) ≈ 𝐴)
35	21, 8, 34	syl2anc 585	. . . . . . . . . . . . . 14 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → (𝐴 × 𝐴) ≈ 𝐴)
36		pwen 9150	. . . . . . . . . . . . . 14 ⊢ ((𝐴 × 𝐴) ≈ 𝐴 → 𝒫 (𝐴 × 𝐴) ≈ 𝒫 𝐴)
37	35, 36	syl 17	. . . . . . . . . . . . 13 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → 𝒫 (𝐴 × 𝐴) ≈ 𝒫 𝐴)
38		djuen 10164	. . . . . . . . . . . . 13 ⊢ ((𝒫 𝐴 ≈ 𝒫 𝐴 ∧ 𝒫 (𝐴 × 𝐴) ≈ 𝒫 𝐴) → (𝒫 𝐴 ⊔ 𝒫 (𝐴 × 𝐴)) ≈ (𝒫 𝐴 ⊔ 𝒫 𝐴))
39	33, 37, 38	syl2anc 585	. . . . . . . . . . . 12 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → (𝒫 𝐴 ⊔ 𝒫 (𝐴 × 𝐴)) ≈ (𝒫 𝐴 ⊔ 𝒫 𝐴))
40		gchdjuidm 10663	. . . . . . . . . . . . 13 ⊢ ((𝒫 𝐴 ∈ GCH ∧ ¬ 𝒫 𝐴 ∈ Fin) → (𝒫 𝐴 ⊔ 𝒫 𝐴) ≈ 𝒫 𝐴)
41	2, 10, 40	syl2anc 585	. . . . . . . . . . . 12 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → (𝒫 𝐴 ⊔ 𝒫 𝐴) ≈ 𝒫 𝐴)
42		entr 9002	. . . . . . . . . . . 12 ⊢ (((𝒫 𝐴 ⊔ 𝒫 (𝐴 × 𝐴)) ≈ (𝒫 𝐴 ⊔ 𝒫 𝐴) ∧ (𝒫 𝐴 ⊔ 𝒫 𝐴) ≈ 𝒫 𝐴) → (𝒫 𝐴 ⊔ 𝒫 (𝐴 × 𝐴)) ≈ 𝒫 𝐴)
43	39, 41, 42	syl2anc 585	. . . . . . . . . . 11 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → (𝒫 𝐴 ⊔ 𝒫 (𝐴 × 𝐴)) ≈ 𝒫 𝐴)
44		pwen 9150	. . . . . . . . . . 11 ⊢ ((𝒫 𝐴 ⊔ 𝒫 (𝐴 × 𝐴)) ≈ 𝒫 𝐴 → 𝒫 (𝒫 𝐴 ⊔ 𝒫 (𝐴 × 𝐴)) ≈ 𝒫 𝒫 𝐴)
45	43, 44	syl 17	. . . . . . . . . 10 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → 𝒫 (𝒫 𝐴 ⊔ 𝒫 (𝐴 × 𝐴)) ≈ 𝒫 𝒫 𝐴)
46		entr 9002	. . . . . . . . . 10 ⊢ (((𝒫 𝒫 𝐴 × 𝒫 𝒫 (𝐴 × 𝐴)) ≈ 𝒫 (𝒫 𝐴 ⊔ 𝒫 (𝐴 × 𝐴)) ∧ 𝒫 (𝒫 𝐴 ⊔ 𝒫 (𝐴 × 𝐴)) ≈ 𝒫 𝒫 𝐴) → (𝒫 𝒫 𝐴 × 𝒫 𝒫 (𝐴 × 𝐴)) ≈ 𝒫 𝒫 𝐴)
47	31, 45, 46	syl2anc 585	. . . . . . . . 9 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → (𝒫 𝒫 𝐴 × 𝒫 𝒫 (𝐴 × 𝐴)) ≈ 𝒫 𝒫 𝐴)
48		domentr 9009	. . . . . . . . 9 ⊢ (((𝒫 𝒫 𝐴 × 𝒫 (har‘𝐴)) ≼ (𝒫 𝒫 𝐴 × 𝒫 𝒫 (𝐴 × 𝐴)) ∧ (𝒫 𝒫 𝐴 × 𝒫 𝒫 (𝐴 × 𝐴)) ≈ 𝒫 𝒫 𝐴) → (𝒫 𝒫 𝐴 × 𝒫 (har‘𝐴)) ≼ 𝒫 𝒫 𝐴)
49	26, 47, 48	syl2anc 585	. . . . . . . 8 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → (𝒫 𝒫 𝐴 × 𝒫 (har‘𝐴)) ≼ 𝒫 𝒫 𝐴)
50		endomtr 9008	. . . . . . . 8 ⊢ ((𝒫 (𝒫 𝐴 ⊔ (har‘𝐴)) ≈ (𝒫 𝒫 𝐴 × 𝒫 (har‘𝐴)) ∧ (𝒫 𝒫 𝐴 × 𝒫 (har‘𝐴)) ≼ 𝒫 𝒫 𝐴) → 𝒫 (𝒫 𝐴 ⊔ (har‘𝐴)) ≼ 𝒫 𝒫 𝐴)
51	19, 49, 50	syl2anc 585	. . . . . . 7 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → 𝒫 (𝒫 𝐴 ⊔ (har‘𝐴)) ≼ 𝒫 𝒫 𝐴)
52		sdomdomtr 9110	. . . . . . 7 ⊢ (((𝒫 𝐴 ⊔ (har‘𝐴)) ≺ 𝒫 (𝒫 𝐴 ⊔ (har‘𝐴)) ∧ 𝒫 (𝒫 𝐴 ⊔ (har‘𝐴)) ≼ 𝒫 𝒫 𝐴) → (𝒫 𝐴 ⊔ (har‘𝐴)) ≺ 𝒫 𝒫 𝐴)
53	17, 51, 52	syl2anc 585	. . . . . 6 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → (𝒫 𝐴 ⊔ (har‘𝐴)) ≺ 𝒫 𝒫 𝐴)
54		gchen1 10620	. . . . . 6 ⊢ (((𝒫 𝐴 ∈ GCH ∧ ¬ 𝒫 𝐴 ∈ Fin) ∧ (𝒫 𝐴 ≼ (𝒫 𝐴 ⊔ (har‘𝐴)) ∧ (𝒫 𝐴 ⊔ (har‘𝐴)) ≺ 𝒫 𝒫 𝐴)) → 𝒫 𝐴 ≈ (𝒫 𝐴 ⊔ (har‘𝐴)))
55	2, 10, 12, 53, 54	syl22anc 838	. . . . 5 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → 𝒫 𝐴 ≈ (𝒫 𝐴 ⊔ (har‘𝐴)))
56		djucomen 10172	. . . . . 6 ⊢ ((𝒫 𝐴 ∈ GCH ∧ (har‘𝐴) ∈ V) → (𝒫 𝐴 ⊔ (har‘𝐴)) ≈ ((har‘𝐴) ⊔ 𝒫 𝐴))
57	2, 13, 56	syl2anc 585	. . . . 5 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → (𝒫 𝐴 ⊔ (har‘𝐴)) ≈ ((har‘𝐴) ⊔ 𝒫 𝐴))
58		entr 9002	. . . . 5 ⊢ ((𝒫 𝐴 ≈ (𝒫 𝐴 ⊔ (har‘𝐴)) ∧ (𝒫 𝐴 ⊔ (har‘𝐴)) ≈ ((har‘𝐴) ⊔ 𝒫 𝐴)) → 𝒫 𝐴 ≈ ((har‘𝐴) ⊔ 𝒫 𝐴))
59	55, 57, 58	syl2anc 585	. . . 4 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → 𝒫 𝐴 ≈ ((har‘𝐴) ⊔ 𝒫 𝐴))
60	59	ensymd 9001	. . 3 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → ((har‘𝐴) ⊔ 𝒫 𝐴) ≈ 𝒫 𝐴)
61		domentr 9009	. . 3 ⊢ (((har‘𝐴) ≼ ((har‘𝐴) ⊔ 𝒫 𝐴) ∧ ((har‘𝐴) ⊔ 𝒫 𝐴) ≈ 𝒫 𝐴) → (har‘𝐴) ≼ 𝒫 𝐴)
62	4, 60, 61	syl2anc 585	. 2 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → (har‘𝐴) ≼ 𝒫 𝐴)
63		gchdjuidm 10663	. . . . . 6 ⊢ ((𝐴 ∈ GCH ∧ ¬ 𝐴 ∈ Fin) → (𝐴 ⊔ 𝐴) ≈ 𝐴)
64	21, 8, 63	syl2anc 585	. . . . 5 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → (𝐴 ⊔ 𝐴) ≈ 𝐴)
65		pwen 9150	. . . . 5 ⊢ ((𝐴 ⊔ 𝐴) ≈ 𝐴 → 𝒫 (𝐴 ⊔ 𝐴) ≈ 𝒫 𝐴)
66	64, 65	syl 17	. . . 4 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → 𝒫 (𝐴 ⊔ 𝐴) ≈ 𝒫 𝐴)
67		djudoml 10179	. . . . . . . 8 ⊢ ((𝐴 ∈ GCH ∧ (har‘𝐴) ∈ On) → 𝐴 ≼ (𝐴 ⊔ (har‘𝐴)))
68	21, 1, 67	sylancl 587	. . . . . . 7 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → 𝐴 ≼ (𝐴 ⊔ (har‘𝐴)))
69		harndom 9557	. . . . . . . 8 ⊢ ¬ (har‘𝐴) ≼ 𝐴
70		djudoml 10179	. . . . . . . . . . 11 ⊢ (((har‘𝐴) ∈ On ∧ 𝐴 ∈ GCH) → (har‘𝐴) ≼ ((har‘𝐴) ⊔ 𝐴))
71	1, 21, 70	sylancr 588	. . . . . . . . . 10 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → (har‘𝐴) ≼ ((har‘𝐴) ⊔ 𝐴))
72		djucomen 10172	. . . . . . . . . . 11 ⊢ (((har‘𝐴) ∈ On ∧ 𝐴 ∈ GCH) → ((har‘𝐴) ⊔ 𝐴) ≈ (𝐴 ⊔ (har‘𝐴)))
73	1, 21, 72	sylancr 588	. . . . . . . . . 10 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → ((har‘𝐴) ⊔ 𝐴) ≈ (𝐴 ⊔ (har‘𝐴)))
74		domentr 9009	. . . . . . . . . 10 ⊢ (((har‘𝐴) ≼ ((har‘𝐴) ⊔ 𝐴) ∧ ((har‘𝐴) ⊔ 𝐴) ≈ (𝐴 ⊔ (har‘𝐴))) → (har‘𝐴) ≼ (𝐴 ⊔ (har‘𝐴)))
75	71, 73, 74	syl2anc 585	. . . . . . . . 9 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → (har‘𝐴) ≼ (𝐴 ⊔ (har‘𝐴)))
76		domen2 9120	. . . . . . . . 9 ⊢ (𝐴 ≈ (𝐴 ⊔ (har‘𝐴)) → ((har‘𝐴) ≼ 𝐴 ↔ (har‘𝐴) ≼ (𝐴 ⊔ (har‘𝐴))))
77	75, 76	syl5ibrcom 246	. . . . . . . 8 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → (𝐴 ≈ (𝐴 ⊔ (har‘𝐴)) → (har‘𝐴) ≼ 𝐴))
78	69, 77	mtoi 198	. . . . . . 7 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → ¬ 𝐴 ≈ (𝐴 ⊔ (har‘𝐴)))
79		brsdom 8971	. . . . . . 7 ⊢ (𝐴 ≺ (𝐴 ⊔ (har‘𝐴)) ↔ (𝐴 ≼ (𝐴 ⊔ (har‘𝐴)) ∧ ¬ 𝐴 ≈ (𝐴 ⊔ (har‘𝐴))))
80	68, 78, 79	sylanbrc 584	. . . . . 6 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → 𝐴 ≺ (𝐴 ⊔ (har‘𝐴)))
81		canth2g 9131	. . . . . . . . . 10 ⊢ (𝐴 ∈ GCH → 𝐴 ≺ 𝒫 𝐴)
82		sdomdom 8976	. . . . . . . . . 10 ⊢ (𝐴 ≺ 𝒫 𝐴 → 𝐴 ≼ 𝒫 𝐴)
83	21, 81, 82	3syl 18	. . . . . . . . 9 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → 𝐴 ≼ 𝒫 𝐴)
84		djudom1 10177	. . . . . . . . 9 ⊢ ((𝐴 ≼ 𝒫 𝐴 ∧ (har‘𝐴) ∈ On) → (𝐴 ⊔ (har‘𝐴)) ≼ (𝒫 𝐴 ⊔ (har‘𝐴)))
85	83, 1, 84	sylancl 587	. . . . . . . 8 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → (𝐴 ⊔ (har‘𝐴)) ≼ (𝒫 𝐴 ⊔ (har‘𝐴)))
86		djudom2 10178	. . . . . . . . 9 ⊢ (((har‘𝐴) ≼ 𝒫 𝐴 ∧ 𝒫 𝐴 ∈ GCH) → (𝒫 𝐴 ⊔ (har‘𝐴)) ≼ (𝒫 𝐴 ⊔ 𝒫 𝐴))
87	62, 2, 86	syl2anc 585	. . . . . . . 8 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → (𝒫 𝐴 ⊔ (har‘𝐴)) ≼ (𝒫 𝐴 ⊔ 𝒫 𝐴))
88		domtr 9003	. . . . . . . 8 ⊢ (((𝐴 ⊔ (har‘𝐴)) ≼ (𝒫 𝐴 ⊔ (har‘𝐴)) ∧ (𝒫 𝐴 ⊔ (har‘𝐴)) ≼ (𝒫 𝐴 ⊔ 𝒫 𝐴)) → (𝐴 ⊔ (har‘𝐴)) ≼ (𝒫 𝐴 ⊔ 𝒫 𝐴))
89	85, 87, 88	syl2anc 585	. . . . . . 7 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → (𝐴 ⊔ (har‘𝐴)) ≼ (𝒫 𝐴 ⊔ 𝒫 𝐴))
90		domentr 9009	. . . . . . 7 ⊢ (((𝐴 ⊔ (har‘𝐴)) ≼ (𝒫 𝐴 ⊔ 𝒫 𝐴) ∧ (𝒫 𝐴 ⊔ 𝒫 𝐴) ≈ 𝒫 𝐴) → (𝐴 ⊔ (har‘𝐴)) ≼ 𝒫 𝐴)
91	89, 41, 90	syl2anc 585	. . . . . 6 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → (𝐴 ⊔ (har‘𝐴)) ≼ 𝒫 𝐴)
92		gchen2 10621	. . . . . 6 ⊢ (((𝐴 ∈ GCH ∧ ¬ 𝐴 ∈ Fin) ∧ (𝐴 ≺ (𝐴 ⊔ (har‘𝐴)) ∧ (𝐴 ⊔ (har‘𝐴)) ≼ 𝒫 𝐴)) → (𝐴 ⊔ (har‘𝐴)) ≈ 𝒫 𝐴)
93	21, 8, 80, 91, 92	syl22anc 838	. . . . 5 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → (𝐴 ⊔ (har‘𝐴)) ≈ 𝒫 𝐴)
94	93	ensymd 9001	. . . 4 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → 𝒫 𝐴 ≈ (𝐴 ⊔ (har‘𝐴)))
95		entr 9002	. . . 4 ⊢ ((𝒫 (𝐴 ⊔ 𝐴) ≈ 𝒫 𝐴 ∧ 𝒫 𝐴 ≈ (𝐴 ⊔ (har‘𝐴))) → 𝒫 (𝐴 ⊔ 𝐴) ≈ (𝐴 ⊔ (har‘𝐴)))
96	66, 94, 95	syl2anc 585	. . 3 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → 𝒫 (𝐴 ⊔ 𝐴) ≈ (𝐴 ⊔ (har‘𝐴)))
97		endom 8975	. . 3 ⊢ (𝒫 (𝐴 ⊔ 𝐴) ≈ (𝐴 ⊔ (har‘𝐴)) → 𝒫 (𝐴 ⊔ 𝐴) ≼ (𝐴 ⊔ (har‘𝐴)))
98		pwdjudom 10211	. . 3 ⊢ (𝒫 (𝐴 ⊔ 𝐴) ≼ (𝐴 ⊔ (har‘𝐴)) → 𝒫 𝐴 ≼ (har‘𝐴))
99	96, 97, 98	3syl 18	. 2 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → 𝒫 𝐴 ≼ (har‘𝐴))
100		sbth 9093	. 2 ⊢ (((har‘𝐴) ≼ 𝒫 𝐴 ∧ 𝒫 𝐴 ≼ (har‘𝐴)) → (har‘𝐴) ≈ 𝒫 𝐴)
101	62, 99, 100	syl2anc 585	1 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → (har‘𝐴) ≈ 𝒫 𝐴)

Colors of variables: wff setvar class

Syntax hints: ¬ wn 3 → wi 4 ∧ w3a 1088 ∈ wcel 2107 Vcvv 3475 𝒫 cpw 4603 class class class wbr 5149 × cxp 5675 Oncon0 6365 ‘cfv 6544 ωcom 7855 ≈ cen 8936 ≼ cdom 8937 ≺ csdm 8938 Fincfn 8939 harchar 9551 ≼^* cwdom 9559 ⊔ cdju 9893 GCHcgch 10615

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2109 ax-9 2117 ax-10 2138 ax-11 2155 ax-12 2172 ax-ext 2704 ax-rep 5286 ax-sep 5300 ax-nul 5307 ax-pow 5364 ax-pr 5428 ax-un 7725 ax-inf2 9636

This theorem depends on definitions: df-bi 206 df-an 398 df-or 847 df-3or 1089 df-3an 1090 df-tru 1545 df-fal 1555 df-ex 1783 df-nf 1787 df-sb 2069 df-mo 2535 df-eu 2564 df-clab 2711 df-cleq 2725 df-clel 2811 df-nfc 2886 df-ne 2942 df-ral 3063 df-rex 3072 df-rmo 3377 df-reu 3378 df-rab 3434 df-v 3477 df-sbc 3779 df-csb 3895 df-dif 3952 df-un 3954 df-in 3956 df-ss 3966 df-pss 3968 df-nul 4324 df-if 4530 df-pw 4605 df-sn 4630 df-pr 4632 df-tp 4634 df-op 4636 df-uni 4910 df-int 4952 df-iun 5000 df-br 5150 df-opab 5212 df-mpt 5233 df-tr 5267 df-id 5575 df-eprel 5581 df-po 5589 df-so 5590 df-fr 5632 df-se 5633 df-we 5634 df-xp 5683 df-rel 5684 df-cnv 5685 df-co 5686 df-dm 5687 df-rn 5688 df-res 5689 df-ima 5690 df-pred 6301 df-ord 6368 df-on 6369 df-lim 6370 df-suc 6371 df-iota 6496 df-fun 6546 df-fn 6547 df-f 6548 df-f1 6549 df-fo 6550 df-f1o 6551 df-fv 6552 df-isom 6553 df-riota 7365 df-ov 7412 df-oprab 7413 df-mpo 7414 df-om 7856 df-1st 7975 df-2nd 7976 df-supp 8147 df-frecs 8266 df-wrecs 8297 df-recs 8371 df-rdg 8410 df-seqom 8448 df-1o 8466 df-2o 8467 df-oadd 8470 df-omul 8471 df-oexp 8472 df-er 8703 df-map 8822 df-en 8940 df-dom 8941 df-sdom 8942 df-fin 8943 df-fsupp 9362 df-oi 9505 df-har 9552 df-wdom 9560 df-cnf 9657 df-dju 9896 df-card 9934 df-fin4 10282 df-gch 10616

This theorem is referenced by: gchacg 10675

W3C validator