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| Mirrors > Home > MPE Home > Th. List > wunsets | Structured version Visualization version GIF version | ||
| Description: Closure of structure replacement in a weak universe. (Contributed by Mario Carneiro, 12-Jan-2017.) |
| Ref | Expression |
|---|---|
| wunsets.1 | ⊢ (𝜑 → 𝑈 ∈ WUni) |
| wunsets.2 | ⊢ (𝜑 → 𝑆 ∈ 𝑈) |
| wunsets.3 | ⊢ (𝜑 → 𝐴 ∈ 𝑈) |
| Ref | Expression |
|---|---|
| wunsets | ⊢ (𝜑 → (𝑆 sSet 𝐴) ∈ 𝑈) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | wunsets.2 | . . 3 ⊢ (𝜑 → 𝑆 ∈ 𝑈) | |
| 2 | wunsets.3 | . . 3 ⊢ (𝜑 → 𝐴 ∈ 𝑈) | |
| 3 | setsvalg 17131 | . . 3 ⊢ ((𝑆 ∈ 𝑈 ∧ 𝐴 ∈ 𝑈) → (𝑆 sSet 𝐴) = ((𝑆 ↾ (V ∖ dom {𝐴})) ∪ {𝐴})) | |
| 4 | 1, 2, 3 | syl2anc 585 | . 2 ⊢ (𝜑 → (𝑆 sSet 𝐴) = ((𝑆 ↾ (V ∖ dom {𝐴})) ∪ {𝐴})) |
| 5 | wunsets.1 | . . 3 ⊢ (𝜑 → 𝑈 ∈ WUni) | |
| 6 | 5, 1 | wunres 10649 | . . 3 ⊢ (𝜑 → (𝑆 ↾ (V ∖ dom {𝐴})) ∈ 𝑈) |
| 7 | 5, 2 | wunsn 10634 | . . 3 ⊢ (𝜑 → {𝐴} ∈ 𝑈) |
| 8 | 5, 6, 7 | wunun 10628 | . 2 ⊢ (𝜑 → ((𝑆 ↾ (V ∖ dom {𝐴})) ∪ {𝐴}) ∈ 𝑈) |
| 9 | 4, 8 | eqeltrd 2837 | 1 ⊢ (𝜑 → (𝑆 sSet 𝐴) ∈ 𝑈) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1542 ∈ wcel 2114 Vcvv 3430 ∖ cdif 3887 ∪ cun 3888 {csn 4568 dom cdm 5626 ↾ cres 5628 (class class class)co 7362 WUnicwun 10618 sSet csts 17128 |
| 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 2709 ax-sep 5232 ax-pr 5372 ax-un 7684 |
| 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 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-ral 3053 df-rex 3063 df-rab 3391 df-v 3432 df-sbc 3730 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-br 5087 df-opab 5149 df-tr 5194 df-id 5521 df-xp 5632 df-rel 5633 df-cnv 5634 df-co 5635 df-dm 5636 df-res 5638 df-iota 6450 df-fun 6496 df-fv 6502 df-ov 7365 df-oprab 7366 df-mpo 7367 df-wun 10620 df-sets 17129 |
| This theorem is referenced by: wunress 17214 catcoppccl 18079 |
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