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Mirrors > Home > MPE Home > Th. List > Mathboxes > setsv | Structured version Visualization version GIF version |
Description: The value of the structure replacement function is a set. (Contributed by AV, 10-Nov-2021.) |
Ref | Expression |
---|---|
setsv | ⊢ ((𝑆 ∈ 𝑉 ∧ 𝐵 ∈ 𝑊) → (𝑆 sSet ⟨𝐴, 𝐵⟩) ∈ V) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | setsval 17065 | . 2 ⊢ ((𝑆 ∈ 𝑉 ∧ 𝐵 ∈ 𝑊) → (𝑆 sSet ⟨𝐴, 𝐵⟩) = ((𝑆 ↾ (V ∖ {𝐴})) ∪ {⟨𝐴, 𝐵⟩})) | |
2 | resexg 6003 | . . 3 ⊢ (𝑆 ∈ 𝑉 → (𝑆 ↾ (V ∖ {𝐴})) ∈ V) | |
3 | snex 5408 | . . . 4 ⊢ {⟨𝐴, 𝐵⟩} ∈ V | |
4 | 3 | a1i 11 | . . 3 ⊢ ((𝑆 ∈ 𝑉 ∧ 𝐵 ∈ 𝑊) → {⟨𝐴, 𝐵⟩} ∈ V) |
5 | unexg 7703 | . . 3 ⊢ (((𝑆 ↾ (V ∖ {𝐴})) ∈ V ∧ {⟨𝐴, 𝐵⟩} ∈ V) → ((𝑆 ↾ (V ∖ {𝐴})) ∪ {⟨𝐴, 𝐵⟩}) ∈ V) | |
6 | 2, 4, 5 | syl2an2r 683 | . 2 ⊢ ((𝑆 ∈ 𝑉 ∧ 𝐵 ∈ 𝑊) → ((𝑆 ↾ (V ∖ {𝐴})) ∪ {⟨𝐴, 𝐵⟩}) ∈ V) |
7 | 1, 6 | eqeltrd 2832 | 1 ⊢ ((𝑆 ∈ 𝑉 ∧ 𝐵 ∈ 𝑊) → (𝑆 sSet ⟨𝐴, 𝐵⟩) ∈ V) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 396 ∈ wcel 2106 Vcvv 3459 ∖ cdif 3925 ∪ cun 3926 {csn 4606 ⟨cop 4612 ↾ cres 5655 (class class class)co 7377 sSet csts 17061 |
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 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2702 ax-sep 5276 ax-nul 5283 ax-pr 5404 ax-un 7692 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 846 df-3an 1089 df-tru 1544 df-fal 1554 df-ex 1782 df-nf 1786 df-sb 2068 df-mo 2533 df-eu 2562 df-clab 2709 df-cleq 2723 df-clel 2809 df-nfc 2884 df-ral 3061 df-rex 3070 df-rab 3419 df-v 3461 df-sbc 3758 df-dif 3931 df-un 3933 df-in 3935 df-ss 3945 df-nul 4303 df-if 4507 df-sn 4607 df-pr 4609 df-op 4613 df-uni 4886 df-br 5126 df-opab 5188 df-id 5551 df-xp 5659 df-rel 5660 df-cnv 5661 df-co 5662 df-dm 5663 df-res 5665 df-iota 6468 df-fun 6518 df-fv 6524 df-ov 7380 df-oprab 7381 df-mpo 7382 df-sets 17062 |
This theorem is referenced by: (None) |
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