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| Mirrors > Home > MPE Home > Th. List > Mathboxes > xrncnvepresex | Structured version Visualization version GIF version | ||
| Description: Sufficient condition for a range Cartesian product with restricted converse epsilon to be a set. (Contributed by Peter Mazsa, 16-Dec-2020.) (Revised by Peter Mazsa, 23-Sep-2021.) |
| Ref | Expression |
|---|---|
| xrncnvepresex | ⊢ ((𝐴 ∈ 𝑉 ∧ 𝑅 ∈ 𝑊) → (𝑅 ⋉ (◡ E ↾ 𝐴)) ∈ V) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | cnvepresex 39188 | . . 3 ⊢ (𝐴 ∈ 𝑉 → (◡ E ↾ 𝐴) ∈ V) | |
| 2 | 1 | adantr 486 | . 2 ⊢ ((𝐴 ∈ 𝑉 ∧ 𝑅 ∈ 𝑊) → (◡ E ↾ 𝐴) ∈ V) |
| 3 | xrnresex 39281 | . 2 ⊢ ((𝐴 ∈ 𝑉 ∧ 𝑅 ∈ 𝑊 ∧ (◡ E ↾ 𝐴) ∈ V) → (𝑅 ⋉ (◡ E ↾ 𝐴)) ∈ V) | |
| 4 | 2, 3 | mpd3an3 1491 | 1 ⊢ ((𝐴 ∈ 𝑉 ∧ 𝑅 ∈ 𝑊) → (𝑅 ⋉ (◡ E ↾ 𝐴)) ∈ V) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 ∈ wcel 2145 Vcvv 3450 E cep 5546 ◡ccnv 5646 ↾ cres 5649 ⋉ cxrn 39026 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2732 ax-rep 5231 ax-sep 5248 ax-nul 5259 ax-pow 5326 ax-pr 5390 ax-un 7734 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-ral 3077 df-rex 3087 df-rab 3413 df-v 3452 df-dif 3901 df-un 3903 df-in 3905 df-ss 3915 df-nul 4279 df-if 4482 df-pw 4558 df-sn 4584 df-pr 4586 df-op 4590 df-uni 4867 df-iun 4952 df-br 5103 df-opab 5167 df-mpt 5186 df-id 5542 df-eprel 5547 df-xp 5653 df-rel 5654 df-cnv 5655 df-co 5656 df-dm 5657 df-rn 5658 df-res 5659 df-iota 6483 df-fun 6529 df-fn 6530 df-f 6531 df-fo 6533 df-fv 6535 df-1st 7984 df-2nd 7985 df-xrn 39232 |
| This theorem is used by: eceldmqsxrncnvepres 39288 eceldmqsxrncnvepres2 39289 1cossxrncnvepresex 39364 pets 39818 dfpetparts2 39824 |
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