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| Mirrors > Home > MPE Home > Th. List > xrsex | Structured version Visualization version GIF version | ||
| Description: The extended real structure is a set. (Contributed by Mario Carneiro, 21-Aug-2015.) |
| Ref | Expression |
|---|---|
| xrsex | ⊢ ℝ*𝑠 ∈ V |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-xrs 17703 | . 2 ⊢ ℝ*𝑠 = ({〈(Base‘ndx), ℝ*〉, 〈(+g‘ndx), +e 〉, 〈(.r‘ndx), ·e 〉} ∪ {〈(TopSet‘ndx), (ordTop‘ ≤ )〉, 〈(le‘ndx), ≤ 〉, 〈(dist‘ndx), (𝑥 ∈ ℝ*, 𝑦 ∈ ℝ* ↦ if(𝑥 ≤ 𝑦, (𝑦 +e -e𝑥), (𝑥 +e -e𝑦)))〉}) | |
| 2 | tpex 7786 | . . 3 ⊢ {〈(Base‘ndx), ℝ*〉, 〈(+g‘ndx), +e 〉, 〈(.r‘ndx), ·e 〉} ∈ V | |
| 3 | tpex 7786 | . . 3 ⊢ {〈(TopSet‘ndx), (ordTop‘ ≤ )〉, 〈(le‘ndx), ≤ 〉, 〈(dist‘ndx), (𝑥 ∈ ℝ*, 𝑦 ∈ ℝ* ↦ if(𝑥 ≤ 𝑦, (𝑦 +e -e𝑥), (𝑥 +e -e𝑦)))〉} ∈ V | |
| 4 | 2, 3 | unex 7785 | . 2 ⊢ ({〈(Base‘ndx), ℝ*〉, 〈(+g‘ndx), +e 〉, 〈(.r‘ndx), ·e 〉} ∪ {〈(TopSet‘ndx), (ordTop‘ ≤ )〉, 〈(le‘ndx), ≤ 〉, 〈(dist‘ndx), (𝑥 ∈ ℝ*, 𝑦 ∈ ℝ* ↦ if(𝑥 ≤ 𝑦, (𝑦 +e -e𝑥), (𝑥 +e -e𝑦)))〉}) ∈ V |
| 5 | 1, 4 | eqeltri 2860 | 1 ⊢ ℝ*𝑠 ∈ V |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ∈ wcel 2147 Vcvv 3454 ∪ cun 4152 ifcif 4485 {ctp 4592 〈cop 4838 class class class wbr 5106 ‘cfv 6558 (class class class)co 7443 ∈ cmpo 7445 ℝ*cxr 11369 ≤ cle 11371 -ecxne 13265 +e cxad 13266 ·e cxmu 13267 ndxcnx 17400 Basecbs 17416 +gcplusg 17457 .rcmulr 17458 TopSetcts 17463 lecple 17464 distcds 17466 ordTopcordt 17700 ℝ*𝑠cxrs 17701 |
| 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 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-ext 2735 ax-sep 5252 ax-pr 5395 ax-un 7775 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-tru 1573 df-ex 1813 df-sb 2102 df-clab 2742 df-cleq 2755 df-clel 2839 df-v 3456 df-ss 3901 df-un 4154 df-sn 4589 df-pr 4591 df-tp 4593 df-uni 4871 df-xrs 17703 |
| This theorem is used by: imasdsf1olem 24722 xrslt 33638 xrsmulgzz 33640 xrstos 33641 xrsp0 33643 xrsp1 33644 pnfinf 33814 xrnarchi 33815 |
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