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| Mirrors > Home > MPE Home > Th. List > wunpm | Structured version Visualization version GIF version | ||
| Description: A weak universe is closed under partial 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 |
|---|---|
| wunpm | ⊢ (𝜑 → (𝐴 ↑pm 𝐵) ∈ 𝑈) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | wun0.1 | . 2 ⊢ (𝜑 → 𝑈 ∈ WUni) | |
| 2 | wunop.3 | . . . 4 ⊢ (𝜑 → 𝐵 ∈ 𝑈) | |
| 3 | wunop.2 | . . . 4 ⊢ (𝜑 → 𝐴 ∈ 𝑈) | |
| 4 | 1, 2, 3 | wunxp 10647 | . . 3 ⊢ (𝜑 → (𝐵 × 𝐴) ∈ 𝑈) |
| 5 | 1, 4 | wunpw 10630 | . 2 ⊢ (𝜑 → 𝒫 (𝐵 × 𝐴) ∈ 𝑈) |
| 6 | pmsspw 8825 | . . 3 ⊢ (𝐴 ↑pm 𝐵) ⊆ 𝒫 (𝐵 × 𝐴) | |
| 7 | 6 | a1i 11 | . 2 ⊢ (𝜑 → (𝐴 ↑pm 𝐵) ⊆ 𝒫 (𝐵 × 𝐴)) |
| 8 | 1, 5, 7 | wunss 10635 | 1 ⊢ (𝜑 → (𝐴 ↑pm 𝐵) ∈ 𝑈) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∈ wcel 2114 ⊆ wss 3889 𝒫 cpw 4541 × cxp 5629 (class class class)co 7367 ↑pm cpm 8774 WUnicwun 10623 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2708 ax-sep 5231 ax-nul 5241 ax-pow 5307 ax-pr 5375 ax-un 7689 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2539 df-eu 2569 df-clab 2715 df-cleq 2728 df-clel 2811 df-nfc 2885 df-ne 2933 df-ral 3052 df-rex 3062 df-rab 3390 df-v 3431 df-sbc 3729 df-csb 3838 df-dif 3892 df-un 3894 df-in 3896 df-ss 3906 df-nul 4274 df-if 4467 df-pw 4543 df-sn 4568 df-pr 4570 df-op 4574 df-uni 4851 df-iun 4935 df-br 5086 df-opab 5148 df-mpt 5167 df-tr 5193 df-id 5526 df-xp 5637 df-rel 5638 df-cnv 5639 df-co 5640 df-dm 5641 df-rn 5642 df-res 5643 df-ima 5644 df-iota 6454 df-fun 6500 df-fn 6501 df-f 6502 df-fv 6506 df-ov 7370 df-oprab 7371 df-mpo 7372 df-1st 7942 df-2nd 7943 df-pm 8776 df-wun 10625 |
| This theorem is referenced by: wunmap 10649 catcfuccl 18085 catcxpccl 18173 |
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