![]() |
Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
|
Mirrors > Home > ILE Home > Th. List > elmpocl | GIF version |
Description: If a two-parameter class is inhabited, constrain the implicit pair. (Contributed by Stefan O'Rear, 7-Mar-2015.) |
Ref | Expression |
---|---|
elmpocl.f | ⊢ 𝐹 = (𝑥 ∈ 𝐴, 𝑦 ∈ 𝐵 ↦ 𝐶) |
Ref | Expression |
---|---|
elmpocl | ⊢ (𝑋 ∈ (𝑆𝐹𝑇) → (𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐵)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | elmpocl.f | . . . . . 6 ⊢ 𝐹 = (𝑥 ∈ 𝐴, 𝑦 ∈ 𝐵 ↦ 𝐶) | |
2 | df-mpo 5924 | . . . . . 6 ⊢ (𝑥 ∈ 𝐴, 𝑦 ∈ 𝐵 ↦ 𝐶) = {〈〈𝑥, 𝑦〉, 𝑧〉 ∣ ((𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐵) ∧ 𝑧 = 𝐶)} | |
3 | 1, 2 | eqtri 2214 | . . . . 5 ⊢ 𝐹 = {〈〈𝑥, 𝑦〉, 𝑧〉 ∣ ((𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐵) ∧ 𝑧 = 𝐶)} |
4 | 3 | dmeqi 4864 | . . . 4 ⊢ dom 𝐹 = dom {〈〈𝑥, 𝑦〉, 𝑧〉 ∣ ((𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐵) ∧ 𝑧 = 𝐶)} |
5 | dmoprabss 6001 | . . . 4 ⊢ dom {〈〈𝑥, 𝑦〉, 𝑧〉 ∣ ((𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐵) ∧ 𝑧 = 𝐶)} ⊆ (𝐴 × 𝐵) | |
6 | 4, 5 | eqsstri 3212 | . . 3 ⊢ dom 𝐹 ⊆ (𝐴 × 𝐵) |
7 | 1 | mpofun 6021 | . . . . . 6 ⊢ Fun 𝐹 |
8 | funrel 5272 | . . . . . 6 ⊢ (Fun 𝐹 → Rel 𝐹) | |
9 | 7, 8 | ax-mp 5 | . . . . 5 ⊢ Rel 𝐹 |
10 | relelfvdm 5587 | . . . . 5 ⊢ ((Rel 𝐹 ∧ 𝑋 ∈ (𝐹‘〈𝑆, 𝑇〉)) → 〈𝑆, 𝑇〉 ∈ dom 𝐹) | |
11 | 9, 10 | mpan 424 | . . . 4 ⊢ (𝑋 ∈ (𝐹‘〈𝑆, 𝑇〉) → 〈𝑆, 𝑇〉 ∈ dom 𝐹) |
12 | df-ov 5922 | . . . 4 ⊢ (𝑆𝐹𝑇) = (𝐹‘〈𝑆, 𝑇〉) | |
13 | 11, 12 | eleq2s 2288 | . . 3 ⊢ (𝑋 ∈ (𝑆𝐹𝑇) → 〈𝑆, 𝑇〉 ∈ dom 𝐹) |
14 | 6, 13 | sselid 3178 | . 2 ⊢ (𝑋 ∈ (𝑆𝐹𝑇) → 〈𝑆, 𝑇〉 ∈ (𝐴 × 𝐵)) |
15 | opelxp 4690 | . 2 ⊢ (〈𝑆, 𝑇〉 ∈ (𝐴 × 𝐵) ↔ (𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐵)) | |
16 | 14, 15 | sylib 122 | 1 ⊢ (𝑋 ∈ (𝑆𝐹𝑇) → (𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐵)) |
Colors of variables: wff set class |
Syntax hints: → wi 4 ∧ wa 104 = wceq 1364 ∈ wcel 2164 〈cop 3622 × cxp 4658 dom cdm 4660 Rel wrel 4665 Fun wfun 5249 ‘cfv 5255 (class class class)co 5919 {coprab 5920 ∈ cmpo 5921 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 710 ax-5 1458 ax-7 1459 ax-gen 1460 ax-ie1 1504 ax-ie2 1505 ax-8 1515 ax-10 1516 ax-11 1517 ax-i12 1518 ax-bndl 1520 ax-4 1521 ax-17 1537 ax-i9 1541 ax-ial 1545 ax-i5r 1546 ax-14 2167 ax-ext 2175 ax-sep 4148 ax-pow 4204 ax-pr 4239 |
This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1367 df-nf 1472 df-sb 1774 df-eu 2045 df-mo 2046 df-clab 2180 df-cleq 2186 df-clel 2189 df-nfc 2325 df-ral 2477 df-rex 2478 df-v 2762 df-un 3158 df-in 3160 df-ss 3167 df-pw 3604 df-sn 3625 df-pr 3626 df-op 3628 df-uni 3837 df-br 4031 df-opab 4092 df-id 4325 df-xp 4666 df-rel 4667 df-cnv 4668 df-co 4669 df-dm 4670 df-iota 5216 df-fun 5257 df-fv 5263 df-ov 5922 df-oprab 5923 df-mpo 5924 |
This theorem is referenced by: elmpocl1 6116 elmpocl2 6117 elovmpo 6119 elovmporab 6120 elovmporab1w 6121 elpmi 6723 elmapex 6725 pmsspw 6739 ixxssxr 9969 elixx3g 9970 ixxssixx 9971 eliooxr 9996 elfz2 10084 restsspw 12863 ismhm 13036 isghm 13316 isrhm 13657 rimrcl 13659 restrcl 14346 ssrest 14361 iscn2 14379 ishmeo 14483 limcrcl 14837 |
Copyright terms: Public domain | W3C validator |