Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > MPE Home > Th. List > ofmresex | Structured version Visualization version GIF version |
Description: Existence of a restriction of the function operation map. (Contributed by NM, 20-Oct-2014.) |
Ref | Expression |
---|---|
ofmresex.a | ⊢ (𝜑 → 𝐴 ∈ 𝑉) |
ofmresex.b | ⊢ (𝜑 → 𝐵 ∈ 𝑊) |
Ref | Expression |
---|---|
ofmresex | ⊢ (𝜑 → ( ∘f 𝑅 ↾ (𝐴 × 𝐵)) ∈ V) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ofmresex.a | . . 3 ⊢ (𝜑 → 𝐴 ∈ 𝑉) | |
2 | ofmresex.b | . . 3 ⊢ (𝜑 → 𝐵 ∈ 𝑊) | |
3 | 1, 2 | xpexd 7472 | . 2 ⊢ (𝜑 → (𝐴 × 𝐵) ∈ V) |
4 | ofexg 7409 | . 2 ⊢ ((𝐴 × 𝐵) ∈ V → ( ∘f 𝑅 ↾ (𝐴 × 𝐵)) ∈ V) | |
5 | 3, 4 | syl 17 | 1 ⊢ (𝜑 → ( ∘f 𝑅 ↾ (𝐴 × 𝐵)) ∈ V) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∈ wcel 2111 Vcvv 3409 × cxp 5522 ↾ cres 5526 ∘f cof 7403 |
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 1911 ax-6 1970 ax-7 2015 ax-8 2113 ax-9 2121 ax-10 2142 ax-11 2158 ax-12 2175 ax-ext 2729 ax-rep 5156 ax-sep 5169 ax-nul 5176 ax-pow 5234 ax-pr 5298 ax-un 7459 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 845 df-3an 1086 df-tru 1541 df-fal 1551 df-ex 1782 df-nf 1786 df-sb 2070 df-mo 2557 df-eu 2588 df-clab 2736 df-cleq 2750 df-clel 2830 df-nfc 2901 df-ne 2952 df-ral 3075 df-rex 3076 df-reu 3077 df-rab 3079 df-v 3411 df-sbc 3697 df-csb 3806 df-dif 3861 df-un 3863 df-in 3865 df-ss 3875 df-nul 4226 df-if 4421 df-pw 4496 df-sn 4523 df-pr 4525 df-op 4529 df-uni 4799 df-iun 4885 df-br 5033 df-opab 5095 df-mpt 5113 df-id 5430 df-xp 5530 df-rel 5531 df-cnv 5532 df-co 5533 df-dm 5534 df-rn 5535 df-res 5536 df-ima 5537 df-iota 6294 df-fun 6337 df-fn 6338 df-f 6339 df-f1 6340 df-fo 6341 df-f1o 6342 df-fv 6343 df-oprab 7154 df-mpo 7155 df-of 7405 |
This theorem is referenced by: ldualfvadd 36704 |
Copyright terms: Public domain | W3C validator |