Theorem gchhar 10101

Description: A "local" form of gchac 10103. 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 9025	. . . 4 ⊢ (har‘𝐴) ∈ On
2		simp3 1134	. . . 4 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → 𝒫 𝐴 ∈ GCH)
3		djudoml 9610	. . . 4 ⊢ (((har‘𝐴) ∈ On ∧ 𝒫 𝐴 ∈ GCH) → (har‘𝐴) ≼ ((har‘𝐴) ⊔ 𝒫 𝐴))
4	1, 2, 3	sylancr 589	. . 3 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → (har‘𝐴) ≼ ((har‘𝐴) ⊔ 𝒫 𝐴))
5		domnsym 8643	. . . . . . . . 9 ⊢ (ω ≼ 𝐴 → ¬ 𝐴 ≺ ω)
6	5	3ad2ant1 1129	. . . . . . . 8 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → ¬ 𝐴 ≺ ω)
7		isfinite 9115	. . . . . . . 8 ⊢ (𝐴 ∈ Fin ↔ 𝐴 ≺ ω)
8	6, 7	sylnibr 331	. . . . . . 7 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → ¬ 𝐴 ∈ Fin)
9		pwfi 8819	. . . . . . 7 ⊢ (𝐴 ∈ Fin ↔ 𝒫 𝐴 ∈ Fin)
10	8, 9	sylnib 330	. . . . . 6 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → ¬ 𝒫 𝐴 ∈ Fin)
11		djudoml 9610	. . . . . . 7 ⊢ ((𝒫 𝐴 ∈ GCH ∧ (har‘𝐴) ∈ On) → 𝒫 𝐴 ≼ (𝒫 𝐴 ⊔ (har‘𝐴)))
12	2, 1, 11	sylancl 588	. . . . . 6 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → 𝒫 𝐴 ≼ (𝒫 𝐴 ⊔ (har‘𝐴)))
13		fvexd 6685	. . . . . . . . 9 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → (har‘𝐴) ∈ V)
14		djuex 9337	. . . . . . . . 9 ⊢ ((𝒫 𝐴 ∈ GCH ∧ (har‘𝐴) ∈ V) → (𝒫 𝐴 ⊔ (har‘𝐴)) ∈ V)
15	2, 13, 14	syl2anc 586	. . . . . . . 8 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → (𝒫 𝐴 ⊔ (har‘𝐴)) ∈ V)
16		canth2g 8671	. . . . . . . 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 9607	. . . . . . . . 9 ⊢ ((𝒫 𝐴 ∈ GCH ∧ (har‘𝐴) ∈ On) → 𝒫 (𝒫 𝐴 ⊔ (har‘𝐴)) ≈ (𝒫 𝒫 𝐴 × 𝒫 (har‘𝐴)))
19	2, 1, 18	sylancl 588	. . . . . . . 8 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → 𝒫 (𝒫 𝐴 ⊔ (har‘𝐴)) ≈ (𝒫 𝒫 𝐴 × 𝒫 (har‘𝐴)))
20	2	pwexd 5280	. . . . . . . . . 10 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → 𝒫 𝒫 𝐴 ∈ V)
21		simp2 1133	. . . . . . . . . . 11 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → 𝐴 ∈ GCH)
22		harwdom 9054	. . . . . . . . . . 11 ⊢ (𝐴 ∈ GCH → (har‘𝐴) ≼* 𝒫 (𝐴 × 𝐴))
23		wdompwdom 9042	. . . . . . . . . . 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 8613	. . . . . . . . . 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 586	. . . . . . . . 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 7474	. . . . . . . . . . . . 13 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → (𝐴 × 𝐴) ∈ V)
28	27	pwexd 5280	. . . . . . . . . . . 12 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → 𝒫 (𝐴 × 𝐴) ∈ V)
29		pwdjuen 9607	. . . . . . . . . . . 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 586	. . . . . . . . . . 11 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → 𝒫 (𝒫 𝐴 ⊔ 𝒫 (𝐴 × 𝐴)) ≈ (𝒫 𝒫 𝐴 × 𝒫 𝒫 (𝐴 × 𝐴)))
31	30	ensymd 8560	. . . . . . . . . 10 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → (𝒫 𝒫 𝐴 × 𝒫 𝒫 (𝐴 × 𝐴)) ≈ 𝒫 (𝒫 𝐴 ⊔ 𝒫 (𝐴 × 𝐴)))
32		enrefg 8541	. . . . . . . . . . . . . 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 10091	. . . . . . . . . . . . . . 15 ⊢ ((𝐴 ∈ GCH ∧ ¬ 𝐴 ∈ Fin) → (𝐴 × 𝐴) ≈ 𝐴)
35	21, 8, 34	syl2anc 586	. . . . . . . . . . . . . 14 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → (𝐴 × 𝐴) ≈ 𝐴)
36		pwen 8690	. . . . . . . . . . . . . 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 9595	. . . . . . . . . . . . 13 ⊢ ((𝒫 𝐴 ≈ 𝒫 𝐴 ∧ 𝒫 (𝐴 × 𝐴) ≈ 𝒫 𝐴) → (𝒫 𝐴 ⊔ 𝒫 (𝐴 × 𝐴)) ≈ (𝒫 𝐴 ⊔ 𝒫 𝐴))
39	33, 37, 38	syl2anc 586	. . . . . . . . . . . 12 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → (𝒫 𝐴 ⊔ 𝒫 (𝐴 × 𝐴)) ≈ (𝒫 𝐴 ⊔ 𝒫 𝐴))
40		gchdjuidm 10090	. . . . . . . . . . . . 13 ⊢ ((𝒫 𝐴 ∈ GCH ∧ ¬ 𝒫 𝐴 ∈ Fin) → (𝒫 𝐴 ⊔ 𝒫 𝐴) ≈ 𝒫 𝐴)
41	2, 10, 40	syl2anc 586	. . . . . . . . . . . 12 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → (𝒫 𝐴 ⊔ 𝒫 𝐴) ≈ 𝒫 𝐴)
42		entr 8561	. . . . . . . . . . . 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 586	. . . . . . . . . . 11 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → (𝒫 𝐴 ⊔ 𝒫 (𝐴 × 𝐴)) ≈ 𝒫 𝐴)
44		pwen 8690	. . . . . . . . . . 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 8561	. . . . . . . . . 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 586	. . . . . . . . 9 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → (𝒫 𝒫 𝐴 × 𝒫 𝒫 (𝐴 × 𝐴)) ≈ 𝒫 𝒫 𝐴)
48		domentr 8568	. . . . . . . . 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 586	. . . . . . . 8 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → (𝒫 𝒫 𝐴 × 𝒫 (har‘𝐴)) ≼ 𝒫 𝒫 𝐴)
50		endomtr 8567	. . . . . . . 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 586	. . . . . . 7 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → 𝒫 (𝒫 𝐴 ⊔ (har‘𝐴)) ≼ 𝒫 𝒫 𝐴)
52		sdomdomtr 8650	. . . . . . 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 586	. . . . . 6 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → (𝒫 𝐴 ⊔ (har‘𝐴)) ≺ 𝒫 𝒫 𝐴)
54		gchen1 10047	. . . . . 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 836	. . . . 5 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → 𝒫 𝐴 ≈ (𝒫 𝐴 ⊔ (har‘𝐴)))
56		djucomen 9603	. . . . . 6 ⊢ ((𝒫 𝐴 ∈ GCH ∧ (har‘𝐴) ∈ V) → (𝒫 𝐴 ⊔ (har‘𝐴)) ≈ ((har‘𝐴) ⊔ 𝒫 𝐴))
57	2, 13, 56	syl2anc 586	. . . . 5 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → (𝒫 𝐴 ⊔ (har‘𝐴)) ≈ ((har‘𝐴) ⊔ 𝒫 𝐴))
58		entr 8561	. . . . 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 586	. . . 4 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → 𝒫 𝐴 ≈ ((har‘𝐴) ⊔ 𝒫 𝐴))
60	59	ensymd 8560	. . 3 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → ((har‘𝐴) ⊔ 𝒫 𝐴) ≈ 𝒫 𝐴)
61		domentr 8568	. . 3 ⊢ (((har‘𝐴) ≼ ((har‘𝐴) ⊔ 𝒫 𝐴) ∧ ((har‘𝐴) ⊔ 𝒫 𝐴) ≈ 𝒫 𝐴) → (har‘𝐴) ≼ 𝒫 𝐴)
62	4, 60, 61	syl2anc 586	. 2 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → (har‘𝐴) ≼ 𝒫 𝐴)
63		gchdjuidm 10090	. . . . . 6 ⊢ ((𝐴 ∈ GCH ∧ ¬ 𝐴 ∈ Fin) → (𝐴 ⊔ 𝐴) ≈ 𝐴)
64	21, 8, 63	syl2anc 586	. . . . 5 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → (𝐴 ⊔ 𝐴) ≈ 𝐴)
65		pwen 8690	. . . . 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 9610	. . . . . . . 8 ⊢ ((𝐴 ∈ GCH ∧ (har‘𝐴) ∈ On) → 𝐴 ≼ (𝐴 ⊔ (har‘𝐴)))
68	21, 1, 67	sylancl 588	. . . . . . 7 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → 𝐴 ≼ (𝐴 ⊔ (har‘𝐴)))
69		harndom 9028	. . . . . . . 8 ⊢ ¬ (har‘𝐴) ≼ 𝐴
70		djudoml 9610	. . . . . . . . . . 11 ⊢ (((har‘𝐴) ∈ On ∧ 𝐴 ∈ GCH) → (har‘𝐴) ≼ ((har‘𝐴) ⊔ 𝐴))
71	1, 21, 70	sylancr 589	. . . . . . . . . 10 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → (har‘𝐴) ≼ ((har‘𝐴) ⊔ 𝐴))
72		djucomen 9603	. . . . . . . . . . 11 ⊢ (((har‘𝐴) ∈ On ∧ 𝐴 ∈ GCH) → ((har‘𝐴) ⊔ 𝐴) ≈ (𝐴 ⊔ (har‘𝐴)))
73	1, 21, 72	sylancr 589	. . . . . . . . . 10 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → ((har‘𝐴) ⊔ 𝐴) ≈ (𝐴 ⊔ (har‘𝐴)))
74		domentr 8568	. . . . . . . . . 10 ⊢ (((har‘𝐴) ≼ ((har‘𝐴) ⊔ 𝐴) ∧ ((har‘𝐴) ⊔ 𝐴) ≈ (𝐴 ⊔ (har‘𝐴))) → (har‘𝐴) ≼ (𝐴 ⊔ (har‘𝐴)))
75	71, 73, 74	syl2anc 586	. . . . . . . . 9 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → (har‘𝐴) ≼ (𝐴 ⊔ (har‘𝐴)))
76		domen2 8660	. . . . . . . . 9 ⊢ (𝐴 ≈ (𝐴 ⊔ (har‘𝐴)) → ((har‘𝐴) ≼ 𝐴 ↔ (har‘𝐴) ≼ (𝐴 ⊔ (har‘𝐴))))
77	75, 76	syl5ibrcom 249	. . . . . . . 8 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → (𝐴 ≈ (𝐴 ⊔ (har‘𝐴)) → (har‘𝐴) ≼ 𝐴))
78	69, 77	mtoi 201	. . . . . . 7 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → ¬ 𝐴 ≈ (𝐴 ⊔ (har‘𝐴)))
79		brsdom 8532	. . . . . . 7 ⊢ (𝐴 ≺ (𝐴 ⊔ (har‘𝐴)) ↔ (𝐴 ≼ (𝐴 ⊔ (har‘𝐴)) ∧ ¬ 𝐴 ≈ (𝐴 ⊔ (har‘𝐴))))
80	68, 78, 79	sylanbrc 585	. . . . . 6 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → 𝐴 ≺ (𝐴 ⊔ (har‘𝐴)))
81		canth2g 8671	. . . . . . . . . 10 ⊢ (𝐴 ∈ GCH → 𝐴 ≺ 𝒫 𝐴)
82		sdomdom 8537	. . . . . . . . . 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 9608	. . . . . . . . 9 ⊢ ((𝐴 ≼ 𝒫 𝐴 ∧ (har‘𝐴) ∈ On) → (𝐴 ⊔ (har‘𝐴)) ≼ (𝒫 𝐴 ⊔ (har‘𝐴)))
85	83, 1, 84	sylancl 588	. . . . . . . 8 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → (𝐴 ⊔ (har‘𝐴)) ≼ (𝒫 𝐴 ⊔ (har‘𝐴)))
86		djudom2 9609	. . . . . . . . 9 ⊢ (((har‘𝐴) ≼ 𝒫 𝐴 ∧ 𝒫 𝐴 ∈ GCH) → (𝒫 𝐴 ⊔ (har‘𝐴)) ≼ (𝒫 𝐴 ⊔ 𝒫 𝐴))
87	62, 2, 86	syl2anc 586	. . . . . . . 8 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → (𝒫 𝐴 ⊔ (har‘𝐴)) ≼ (𝒫 𝐴 ⊔ 𝒫 𝐴))
88		domtr 8562	. . . . . . . 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 586	. . . . . . 7 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → (𝐴 ⊔ (har‘𝐴)) ≼ (𝒫 𝐴 ⊔ 𝒫 𝐴))
90		domentr 8568	. . . . . . 7 ⊢ (((𝐴 ⊔ (har‘𝐴)) ≼ (𝒫 𝐴 ⊔ 𝒫 𝐴) ∧ (𝒫 𝐴 ⊔ 𝒫 𝐴) ≈ 𝒫 𝐴) → (𝐴 ⊔ (har‘𝐴)) ≼ 𝒫 𝐴)
91	89, 41, 90	syl2anc 586	. . . . . 6 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → (𝐴 ⊔ (har‘𝐴)) ≼ 𝒫 𝐴)
92		gchen2 10048	. . . . . 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 836	. . . . 5 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → (𝐴 ⊔ (har‘𝐴)) ≈ 𝒫 𝐴)
94	93	ensymd 8560	. . . 4 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → 𝒫 𝐴 ≈ (𝐴 ⊔ (har‘𝐴)))
95		entr 8561	. . . 4 ⊢ ((𝒫 (𝐴 ⊔ 𝐴) ≈ 𝒫 𝐴 ∧ 𝒫 𝐴 ≈ (𝐴 ⊔ (har‘𝐴))) → 𝒫 (𝐴 ⊔ 𝐴) ≈ (𝐴 ⊔ (har‘𝐴)))
96	66, 94, 95	syl2anc 586	. . 3 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → 𝒫 (𝐴 ⊔ 𝐴) ≈ (𝐴 ⊔ (har‘𝐴)))
97		endom 8536	. . 3 ⊢ (𝒫 (𝐴 ⊔ 𝐴) ≈ (𝐴 ⊔ (har‘𝐴)) → 𝒫 (𝐴 ⊔ 𝐴) ≼ (𝐴 ⊔ (har‘𝐴)))
98		pwdjudom 9638	. . 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 8637	. 2 ⊢ (((har‘𝐴) ≼ 𝒫 𝐴 ∧ 𝒫 𝐴 ≼ (har‘𝐴)) → (har‘𝐴) ≈ 𝒫 𝐴)
101	62, 99, 100	syl2anc 586	1 ⊢ ((ω ≼ 𝐴 ∧ 𝐴 ∈ GCH ∧ 𝒫 𝐴 ∈ GCH) → (har‘𝐴) ≈ 𝒫 𝐴)

Syntax hints:  ¬ wn 3   → wi 4   ∧ w3a 1083   ∈ wcel 2114  Vcvv 3494  𝒫 cpw 4539   class class class wbr 5066   × cxp 5553  Oncon0 6191  ‘cfv 6355  ωcom 7580   ≈ cen 8506   ≼ cdom 8507   ≺ csdm 8508  Fincfn 8509  harchar 9020   ≼^* cwdom 9021   ⊔ cdju 9327  GCHcgch 10042

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1796  ax-4 1810  ax-5 1911  ax-6 1970  ax-7 2015  ax-8 2116  ax-9 2124  ax-10 2145  ax-11 2161  ax-12 2177  ax-ext 2793  ax-rep 5190  ax-sep 5203  ax-nul 5210  ax-pow 5266  ax-pr 5330  ax-un 7461  ax-inf2 9104

This theorem depends on definitions:  df-bi 209  df-an 399  df-or 844  df-3or 1084  df-3an 1085  df-tru 1540  df-fal 1550  df-ex 1781  df-nf 1785  df-sb 2070  df-mo 2622  df-eu 2654  df-clab 2800  df-cleq 2814  df-clel 2893  df-nfc 2963  df-ne 3017  df-ral 3143  df-rex 3144  df-reu 3145  df-rmo 3146  df-rab 3147  df-v 3496  df-sbc 3773  df-csb 3884  df-dif 3939  df-un 3941  df-in 3943  df-ss 3952  df-pss 3954  df-nul 4292  df-if 4468  df-pw 4541  df-sn 4568  df-pr 4570  df-tp 4572  df-op 4574  df-uni 4839  df-int 4877  df-iun 4921  df-br 5067  df-opab 5129  df-mpt 5147  df-tr 5173  df-id 5460  df-eprel 5465  df-po 5474  df-so 5475  df-fr 5514  df-se 5515  df-we 5516  df-xp 5561  df-rel 5562  df-cnv 5563  df-co 5564  df-dm 5565  df-rn 5566  df-res 5567  df-ima 5568  df-pred 6148  df-ord 6194  df-on 6195  df-lim 6196  df-suc 6197  df-iota 6314  df-fun 6357  df-fn 6358  df-f 6359  df-f1 6360  df-fo 6361  df-f1o 6362  df-fv 6363  df-isom 6364  df-riota 7114  df-ov 7159  df-oprab 7160  df-mpo 7161  df-om 7581  df-1st 7689  df-2nd 7690  df-supp 7831  df-wrecs 7947  df-recs 8008  df-rdg 8046  df-seqom 8084  df-1o 8102  df-2o 8103  df-oadd 8106  df-omul 8107  df-oexp 8108  df-er 8289  df-map 8408  df-en 8510  df-dom 8511  df-sdom 8512  df-fin 8513  df-fsupp 8834  df-oi 8974  df-har 9022  df-wdom 9023  df-cnf 9125  df-dju 9330  df-card 9368  df-fin4 9709  df-gch 10043

This theorem is referenced by:  gchacg  10102