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Mirrors > Home > MPE Home > Th. List > wunmap | Structured version Visualization version GIF version |
Description: A weak universe is closed under mappings. (Contributed by Mario Carneiro, 2-Jan-2017.) |
Ref | Expression |
---|---|
wun0.1 | ⊢ (𝜑 → 𝑈 ∈ WUni) |
wunop.2 | ⊢ (𝜑 → 𝐴 ∈ 𝑈) |
wunop.3 | ⊢ (𝜑 → 𝐵 ∈ 𝑈) |
Ref | Expression |
---|---|
wunmap | ⊢ (𝜑 → (𝐴 ↑m 𝐵) ∈ 𝑈) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | wun0.1 | . 2 ⊢ (𝜑 → 𝑈 ∈ WUni) | |
2 | wunop.2 | . . 3 ⊢ (𝜑 → 𝐴 ∈ 𝑈) | |
3 | wunop.3 | . . 3 ⊢ (𝜑 → 𝐵 ∈ 𝑈) | |
4 | 1, 2, 3 | wunpm 10574 | . 2 ⊢ (𝜑 → (𝐴 ↑pm 𝐵) ∈ 𝑈) |
5 | mapsspm 8727 | . . 3 ⊢ (𝐴 ↑m 𝐵) ⊆ (𝐴 ↑pm 𝐵) | |
6 | 5 | a1i 11 | . 2 ⊢ (𝜑 → (𝐴 ↑m 𝐵) ⊆ (𝐴 ↑pm 𝐵)) |
7 | 1, 4, 6 | wunss 10561 | 1 ⊢ (𝜑 → (𝐴 ↑m 𝐵) ∈ 𝑈) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∈ wcel 2105 ⊆ wss 3897 (class class class)co 7329 ↑m cmap 8678 ↑pm cpm 8679 WUnicwun 10549 |
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 1912 ax-6 1970 ax-7 2010 ax-8 2107 ax-9 2115 ax-10 2136 ax-11 2153 ax-12 2170 ax-ext 2707 ax-sep 5240 ax-nul 5247 ax-pow 5305 ax-pr 5369 ax-un 7642 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1781 df-nf 1785 df-sb 2067 df-mo 2538 df-eu 2567 df-clab 2714 df-cleq 2728 df-clel 2814 df-nfc 2886 df-ne 2941 df-ral 3062 df-rex 3071 df-rab 3404 df-v 3443 df-sbc 3727 df-csb 3843 df-dif 3900 df-un 3902 df-in 3904 df-ss 3914 df-nul 4269 df-if 4473 df-pw 4548 df-sn 4573 df-pr 4575 df-op 4579 df-uni 4852 df-iun 4940 df-br 5090 df-opab 5152 df-mpt 5173 df-tr 5207 df-id 5512 df-xp 5620 df-rel 5621 df-cnv 5622 df-co 5623 df-dm 5624 df-rn 5625 df-res 5626 df-ima 5627 df-iota 6425 df-fun 6475 df-fn 6476 df-f 6477 df-fv 6481 df-ov 7332 df-oprab 7333 df-mpo 7334 df-1st 7891 df-2nd 7892 df-map 8680 df-pm 8681 df-wun 10551 |
This theorem is referenced by: wunf 10576 tskmap 10637 wunfunc 17703 wunfuncOLD 17704 wunnat 17761 wunnatOLD 17762 catcfuccl 17923 catcfucclOLD 17924 |
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