Theorem wuncnv 10825

Description: A weak universe is closed under the converse operator. (Contributed by Mario Carneiro, 2-Jan-2017.)

Hypotheses

Ref	Expression
wun0.1	⊢ (𝜑 → 𝑈 ∈ WUni)
wunop.2	⊢ (𝜑 → 𝐴 ∈ 𝑈)

Assertion

Ref	Expression
wuncnv	⊢ (𝜑 → ◡𝐴 ∈ 𝑈)

Proof of Theorem wuncnv

Step	Hyp	Ref	Expression
1		wun0.1	. 2 ⊢ (𝜑 → 𝑈 ∈ WUni)
2		wunop.2	. . . 4 ⊢ (𝜑 → 𝐴 ∈ 𝑈)
3	1, 2	wunrn 10824	. . 3 ⊢ (𝜑 → ran 𝐴 ∈ 𝑈)
4	1, 2	wundm 10823	. . 3 ⊢ (𝜑 → dom 𝐴 ∈ 𝑈)
5	1, 3, 4	wunxp 10819	. 2 ⊢ (𝜑 → (ran 𝐴 × dom 𝐴) ∈ 𝑈)
6		cnvssrndm 6279	. . 3 ⊢ ◡𝐴 ⊆ (ran 𝐴 × dom 𝐴)
7	6	a1i 11	. 2 ⊢ (𝜑 → ◡𝐴 ⊆ (ran 𝐴 × dom 𝐴))
8	1, 5, 7	wunss 10807	1 ⊢ (𝜑 → ◡𝐴 ∈ 𝑈)

This proof depends on syntax axioms:   → wi 4   ∈ wcel 2146   ⊆ wss 3899   × cxp 5652  ^◡ccnv 5653  dom cdm 5654  ran crn 5655  WUnicwun 10795

This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1827  ax-4 1841  ax-5 1944  ax-6 2001  ax-7 2042  ax-8 2148  ax-9 2156  ax-ext 2735  ax-sep 5251  ax-pr 5394

This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3an 1105  df-tru 1572  df-fal 1582  df-ex 1812  df-sb 2101  df-clab 2742  df-cleq 2755  df-clel 2838  df-ne 2959  df-ral 3080  df-rex 3090  df-rab 3416  df-v 3455  df-ss 3900  df-dif 4049  df-in 4093  df-un 4153  df-nul 4281  df-if 4485  df-pw 4561  df-sn 4588  df-pr 4590  df-op 4838  df-uni 4870  df-br 5106  df-opab 5170  df-tr 5215  df-xp 5660  df-rel 5661  df-cnv 5662  df-dm 5664  df-rn 5665  df-wun 10797

This theorem is used by:  wuntpos  10829  catcoppccl  18304