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Mirrors > Home > MPE Home > Th. List > Mathboxes > diaeldm | Structured version Visualization version GIF version |
Description: Member of domain of the partial isomorphism A. (Contributed by NM, 4-Dec-2013.) |
Ref | Expression |
---|---|
diafn.b | ⊢ 𝐵 = (Base‘𝐾) |
diafn.l | ⊢ ≤ = (le‘𝐾) |
diafn.h | ⊢ 𝐻 = (LHyp‘𝐾) |
diafn.i | ⊢ 𝐼 = ((DIsoA‘𝐾)‘𝑊) |
Ref | Expression |
---|---|
diaeldm | ⊢ ((𝐾 ∈ 𝑉 ∧ 𝑊 ∈ 𝐻) → (𝑋 ∈ dom 𝐼 ↔ (𝑋 ∈ 𝐵 ∧ 𝑋 ≤ 𝑊))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | diafn.b | . . . 4 ⊢ 𝐵 = (Base‘𝐾) | |
2 | diafn.l | . . . 4 ⊢ ≤ = (le‘𝐾) | |
3 | diafn.h | . . . 4 ⊢ 𝐻 = (LHyp‘𝐾) | |
4 | diafn.i | . . . 4 ⊢ 𝐼 = ((DIsoA‘𝐾)‘𝑊) | |
5 | 1, 2, 3, 4 | diadm 38976 | . . 3 ⊢ ((𝐾 ∈ 𝑉 ∧ 𝑊 ∈ 𝐻) → dom 𝐼 = {𝑥 ∈ 𝐵 ∣ 𝑥 ≤ 𝑊}) |
6 | 5 | eleq2d 2824 | . 2 ⊢ ((𝐾 ∈ 𝑉 ∧ 𝑊 ∈ 𝐻) → (𝑋 ∈ dom 𝐼 ↔ 𝑋 ∈ {𝑥 ∈ 𝐵 ∣ 𝑥 ≤ 𝑊})) |
7 | breq1 5073 | . . 3 ⊢ (𝑥 = 𝑋 → (𝑥 ≤ 𝑊 ↔ 𝑋 ≤ 𝑊)) | |
8 | 7 | elrab 3617 | . 2 ⊢ (𝑋 ∈ {𝑥 ∈ 𝐵 ∣ 𝑥 ≤ 𝑊} ↔ (𝑋 ∈ 𝐵 ∧ 𝑋 ≤ 𝑊)) |
9 | 6, 8 | bitrdi 286 | 1 ⊢ ((𝐾 ∈ 𝑉 ∧ 𝑊 ∈ 𝐻) → (𝑋 ∈ dom 𝐼 ↔ (𝑋 ∈ 𝐵 ∧ 𝑋 ≤ 𝑊))) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 205 ∧ wa 395 = wceq 1539 ∈ wcel 2108 {crab 3067 class class class wbr 5070 dom cdm 5580 ‘cfv 6418 Basecbs 16840 lecple 16895 LHypclh 37925 DIsoAcdia 38969 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1799 ax-4 1813 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2110 ax-9 2118 ax-10 2139 ax-11 2156 ax-12 2173 ax-ext 2709 ax-rep 5205 ax-sep 5218 ax-nul 5225 ax-pr 5347 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3an 1087 df-tru 1542 df-fal 1552 df-ex 1784 df-nf 1788 df-sb 2069 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2817 df-nfc 2888 df-ne 2943 df-ral 3068 df-rex 3069 df-reu 3070 df-rab 3072 df-v 3424 df-sbc 3712 df-csb 3829 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-nul 4254 df-if 4457 df-sn 4559 df-pr 4561 df-op 4565 df-uni 4837 df-iun 4923 df-br 5071 df-opab 5133 df-mpt 5154 df-id 5480 df-xp 5586 df-rel 5587 df-cnv 5588 df-co 5589 df-dm 5590 df-rn 5591 df-res 5592 df-ima 5593 df-iota 6376 df-fun 6420 df-fn 6421 df-f 6422 df-f1 6423 df-fo 6424 df-f1o 6425 df-fv 6426 df-disoa 38970 |
This theorem is referenced by: diadmclN 38978 diadmleN 38979 dia0eldmN 38981 dia1eldmN 38982 diaf11N 38990 diaglbN 38996 diaintclN 38999 diasslssN 39000 docaclN 39065 doca2N 39067 djajN 39078 dibval2 39085 dibeldmN 39099 |
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