Theorem ismre 17633

Description: Property of being a Moore collection on some base set. (Contributed by Stefan O'Rear, 30-Jan-2015.)

Assertion

Ref	Expression
ismre	⊢ (𝐶 ∈ (Moore‘𝑋) ↔ (𝐶 ⊆ 𝒫 𝑋 ∧ 𝑋 ∈ 𝐶 ∧ ∀𝑠 ∈ 𝒫 𝐶(𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝐶)))

Distinct variable groups:   𝐶,𝑠   𝑋,𝑠

Proof of Theorem ismre

Dummy variables 𝑐 𝑥 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		elfvex 6944	. 2 ⊢ (𝐶 ∈ (Moore‘𝑋) → 𝑋 ∈ V)
2		elex 3501	. . 3 ⊢ (𝑋 ∈ 𝐶 → 𝑋 ∈ V)
3	2	3ad2ant2 1135	. 2 ⊢ ((𝐶 ⊆ 𝒫 𝑋 ∧ 𝑋 ∈ 𝐶 ∧ ∀𝑠 ∈ 𝒫 𝐶(𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝐶)) → 𝑋 ∈ V)
4		pweq 4614	. . . . . . 7 ⊢ (𝑥 = 𝑋 → 𝒫 𝑥 = 𝒫 𝑋)
5	4	pweqd 4617	. . . . . 6 ⊢ (𝑥 = 𝑋 → 𝒫 𝒫 𝑥 = 𝒫 𝒫 𝑋)
6		eleq1 2829	. . . . . . 7 ⊢ (𝑥 = 𝑋 → (𝑥 ∈ 𝑐 ↔ 𝑋 ∈ 𝑐))
7	6	anbi1d 631	. . . . . 6 ⊢ (𝑥 = 𝑋 → ((𝑥 ∈ 𝑐 ∧ ∀𝑠 ∈ 𝒫 𝑐(𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝑐)) ↔ (𝑋 ∈ 𝑐 ∧ ∀𝑠 ∈ 𝒫 𝑐(𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝑐))))
8	5, 7	rabeqbidv 3455	. . . . 5 ⊢ (𝑥 = 𝑋 → {𝑐 ∈ 𝒫 𝒫 𝑥 ∣ (𝑥 ∈ 𝑐 ∧ ∀𝑠 ∈ 𝒫 𝑐(𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝑐))} = {𝑐 ∈ 𝒫 𝒫 𝑋 ∣ (𝑋 ∈ 𝑐 ∧ ∀𝑠 ∈ 𝒫 𝑐(𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝑐))})
9		df-mre 17629	. . . . 5 ⊢ Moore = (𝑥 ∈ V ↦ {𝑐 ∈ 𝒫 𝒫 𝑥 ∣ (𝑥 ∈ 𝑐 ∧ ∀𝑠 ∈ 𝒫 𝑐(𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝑐))})
10		vpwex 5377	. . . . . . 7 ⊢ 𝒫 𝑥 ∈ V
11	10	pwex 5380	. . . . . 6 ⊢ 𝒫 𝒫 𝑥 ∈ V
12	11	rabex 5339	. . . . 5 ⊢ {𝑐 ∈ 𝒫 𝒫 𝑥 ∣ (𝑥 ∈ 𝑐 ∧ ∀𝑠 ∈ 𝒫 𝑐(𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝑐))} ∈ V
13	8, 9, 12	fvmpt3i 7021	. . . 4 ⊢ (𝑋 ∈ V → (Moore‘𝑋) = {𝑐 ∈ 𝒫 𝒫 𝑋 ∣ (𝑋 ∈ 𝑐 ∧ ∀𝑠 ∈ 𝒫 𝑐(𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝑐))})
14	13	eleq2d 2827	. . 3 ⊢ (𝑋 ∈ V → (𝐶 ∈ (Moore‘𝑋) ↔ 𝐶 ∈ {𝑐 ∈ 𝒫 𝒫 𝑋 ∣ (𝑋 ∈ 𝑐 ∧ ∀𝑠 ∈ 𝒫 𝑐(𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝑐))}))
15		eleq2 2830	. . . . . 6 ⊢ (𝑐 = 𝐶 → (𝑋 ∈ 𝑐 ↔ 𝑋 ∈ 𝐶))
16		pweq 4614	. . . . . . 7 ⊢ (𝑐 = 𝐶 → 𝒫 𝑐 = 𝒫 𝐶)
17		eleq2 2830	. . . . . . . 8 ⊢ (𝑐 = 𝐶 → (∩ 𝑠 ∈ 𝑐 ↔ ∩ 𝑠 ∈ 𝐶))
18	17	imbi2d 340	. . . . . . 7 ⊢ (𝑐 = 𝐶 → ((𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝑐) ↔ (𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝐶)))
19	16, 18	raleqbidv 3346	. . . . . 6 ⊢ (𝑐 = 𝐶 → (∀𝑠 ∈ 𝒫 𝑐(𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝑐) ↔ ∀𝑠 ∈ 𝒫 𝐶(𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝐶)))
20	15, 19	anbi12d 632	. . . . 5 ⊢ (𝑐 = 𝐶 → ((𝑋 ∈ 𝑐 ∧ ∀𝑠 ∈ 𝒫 𝑐(𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝑐)) ↔ (𝑋 ∈ 𝐶 ∧ ∀𝑠 ∈ 𝒫 𝐶(𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝐶))))
21	20	elrab 3692	. . . 4 ⊢ (𝐶 ∈ {𝑐 ∈ 𝒫 𝒫 𝑋 ∣ (𝑋 ∈ 𝑐 ∧ ∀𝑠 ∈ 𝒫 𝑐(𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝑐))} ↔ (𝐶 ∈ 𝒫 𝒫 𝑋 ∧ (𝑋 ∈ 𝐶 ∧ ∀𝑠 ∈ 𝒫 𝐶(𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝐶))))
22	21	a1i 11	. . 3 ⊢ (𝑋 ∈ V → (𝐶 ∈ {𝑐 ∈ 𝒫 𝒫 𝑋 ∣ (𝑋 ∈ 𝑐 ∧ ∀𝑠 ∈ 𝒫 𝑐(𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝑐))} ↔ (𝐶 ∈ 𝒫 𝒫 𝑋 ∧ (𝑋 ∈ 𝐶 ∧ ∀𝑠 ∈ 𝒫 𝐶(𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝐶)))))
23		pwexg 5378	. . . . . 6 ⊢ (𝑋 ∈ V → 𝒫 𝑋 ∈ V)
24		elpw2g 5333	. . . . . 6 ⊢ (𝒫 𝑋 ∈ V → (𝐶 ∈ 𝒫 𝒫 𝑋 ↔ 𝐶 ⊆ 𝒫 𝑋))
25	23, 24	syl 17	. . . . 5 ⊢ (𝑋 ∈ V → (𝐶 ∈ 𝒫 𝒫 𝑋 ↔ 𝐶 ⊆ 𝒫 𝑋))
26	25	anbi1d 631	. . . 4 ⊢ (𝑋 ∈ V → ((𝐶 ∈ 𝒫 𝒫 𝑋 ∧ (𝑋 ∈ 𝐶 ∧ ∀𝑠 ∈ 𝒫 𝐶(𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝐶))) ↔ (𝐶 ⊆ 𝒫 𝑋 ∧ (𝑋 ∈ 𝐶 ∧ ∀𝑠 ∈ 𝒫 𝐶(𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝐶)))))
27		3anass 1095	. . . 4 ⊢ ((𝐶 ⊆ 𝒫 𝑋 ∧ 𝑋 ∈ 𝐶 ∧ ∀𝑠 ∈ 𝒫 𝐶(𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝐶)) ↔ (𝐶 ⊆ 𝒫 𝑋 ∧ (𝑋 ∈ 𝐶 ∧ ∀𝑠 ∈ 𝒫 𝐶(𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝐶))))
28	26, 27	bitr4di 289	. . 3 ⊢ (𝑋 ∈ V → ((𝐶 ∈ 𝒫 𝒫 𝑋 ∧ (𝑋 ∈ 𝐶 ∧ ∀𝑠 ∈ 𝒫 𝐶(𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝐶))) ↔ (𝐶 ⊆ 𝒫 𝑋 ∧ 𝑋 ∈ 𝐶 ∧ ∀𝑠 ∈ 𝒫 𝐶(𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝐶))))
29	14, 22, 28	3bitrd 305	. 2 ⊢ (𝑋 ∈ V → (𝐶 ∈ (Moore‘𝑋) ↔ (𝐶 ⊆ 𝒫 𝑋 ∧ 𝑋 ∈ 𝐶 ∧ ∀𝑠 ∈ 𝒫 𝐶(𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝐶))))
30	1, 3, 29	pm5.21nii 378	1 ⊢ (𝐶 ∈ (Moore‘𝑋) ↔ (𝐶 ⊆ 𝒫 𝑋 ∧ 𝑋 ∈ 𝐶 ∧ ∀𝑠 ∈ 𝒫 𝐶(𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝐶)))

Syntax hints:   → wi 4   ↔ wb 206   ∧ wa 395   ∧ w3a 1087   = wceq 1540   ∈ wcel 2108   ≠ wne 2940  ∀wral 3061  {crab 3436  Vcvv 3480   ⊆ wss 3951  ∅c0 4333  𝒫 cpw 4600  ∩ cint 4946  ‘cfv 6561  Moorecmre 17625

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1795  ax-4 1809  ax-5 1910  ax-6 1967  ax-7 2007  ax-8 2110  ax-9 2118  ax-10 2141  ax-11 2157  ax-12 2177  ax-ext 2708  ax-sep 5296  ax-nul 5306  ax-pow 5365  ax-pr 5432

This theorem depends on definitions:  df-bi 207  df-an 396  df-or 849  df-3an 1089  df-tru 1543  df-fal 1553  df-ex 1780  df-nf 1784  df-sb 2065  df-mo 2540  df-eu 2569  df-clab 2715  df-cleq 2729  df-clel 2816  df-nfc 2892  df-ral 3062  df-rex 3071  df-rab 3437  df-v 3482  df-dif 3954  df-un 3956  df-in 3958  df-ss 3968  df-nul 4334  df-if 4526  df-pw 4602  df-sn 4627  df-pr 4629  df-op 4633  df-uni 4908  df-br 5144  df-opab 5206  df-mpt 5226  df-id 5578  df-xp 5691  df-rel 5692  df-cnv 5693  df-co 5694  df-dm 5695  df-iota 6514  df-fun 6563  df-fv 6569  df-mre 17629

This theorem is referenced by:  mresspw  17635  mre1cl  17637  mreintcl  17638  ismred  17645