Theorem tposexg 7253

Description: The transposition of a set is a set. (Contributed by Mario Carneiro, 10-Sep-2015.)

Assertion

Ref	Expression
tposexg	⊢ (𝐹 ∈ 𝑉 → tpos 𝐹 ∈ V)

Proof of Theorem tposexg

Step	Hyp	Ref	Expression
1		tposssxp 7243	. 2 ⊢ tpos 𝐹 ⊆ ((◡dom 𝐹 ∪ {∅}) × ran 𝐹)
2		dmexg 6989	. . . . 5 ⊢ (𝐹 ∈ 𝑉 → dom 𝐹 ∈ V)
3		cnvexg 7005	. . . . 5 ⊢ (dom 𝐹 ∈ V → ◡dom 𝐹 ∈ V)
4	2, 3	syl 17	. . . 4 ⊢ (𝐹 ∈ 𝑉 → ◡dom 𝐹 ∈ V)
5		p0ex 4779	. . . 4 ⊢ {∅} ∈ V
6		unexg 6857	. . . 4 ⊢ ((◡dom 𝐹 ∈ V ∧ {∅} ∈ V) → (◡dom 𝐹 ∪ {∅}) ∈ V)
7	4, 5, 6	sylancl 693	. . 3 ⊢ (𝐹 ∈ 𝑉 → (◡dom 𝐹 ∪ {∅}) ∈ V)
8		rnexg 6990	. . 3 ⊢ (𝐹 ∈ 𝑉 → ran 𝐹 ∈ V)
9		xpexg 6858	. . 3 ⊢ (((◡dom 𝐹 ∪ {∅}) ∈ V ∧ ran 𝐹 ∈ V) → ((◡dom 𝐹 ∪ {∅}) × ran 𝐹) ∈ V)
10	7, 8, 9	syl2anc 691	. 2 ⊢ (𝐹 ∈ 𝑉 → ((◡dom 𝐹 ∪ {∅}) × ran 𝐹) ∈ V)
11		ssexg 4732	. 2 ⊢ ((tpos 𝐹 ⊆ ((◡dom 𝐹 ∪ {∅}) × ran 𝐹) ∧ ((◡dom 𝐹 ∪ {∅}) × ran 𝐹) ∈ V) → tpos 𝐹 ∈ V)
12	1, 10, 11	sylancr 694	1 ⊢ (𝐹 ∈ 𝑉 → tpos 𝐹 ∈ V)

Syntax hints:   → wi 4   ∈ wcel 1977  Vcvv 3173   ∪ cun 3538   ⊆ wss 3540  ∅c0 3874  {csn 4125   × cxp 5036  ^◡ccnv 5037  dom cdm 5038  ran crn 5039  tpos ctpos 7238

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1713  ax-4 1728  ax-5 1827  ax-6 1875  ax-7 1922  ax-8 1979  ax-9 1986  ax-10 2006  ax-11 2021  ax-12 2034  ax-13 2234  ax-ext 2590  ax-sep 4709  ax-nul 4717  ax-pow 4769  ax-pr 4833  ax-un 6847

This theorem depends on definitions:  df-bi 196  df-or 384  df-an 385  df-3an 1033  df-tru 1478  df-ex 1696  df-nf 1701  df-sb 1868  df-eu 2462  df-mo 2463  df-clab 2597  df-cleq 2603  df-clel 2606  df-nfc 2740  df-ral 2901  df-rex 2902  df-rab 2905  df-v 3175  df-dif 3543  df-un 3545  df-in 3547  df-ss 3554  df-nul 3875  df-if 4037  df-pw 4110  df-sn 4126  df-pr 4128  df-op 4132  df-uni 4373  df-br 4584  df-opab 4644  df-mpt 4645  df-xp 5044  df-rel 5045  df-cnv 5046  df-co 5047  df-dm 5048  df-rn 5049  df-res 5050  df-ima 5051  df-tpos 7239

This theorem is referenced by:  tposex  7273  oftpos  20077