Theorem xrsex 21518

Description: The extended real structure is a set. (Contributed by Mario Carneiro, 21-Aug-2015.)

Assertion

Ref	Expression
xrsex	⊢ ℝ*𝑠 ∈ V

Proof of Theorem xrsex

Dummy variables 𝑥 𝑦 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		df-xrs 17555	. 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 7744	. . 3 ⊢ {⟨(Base‘ndx), ℝ*⟩, ⟨(+g‘ndx), +𝑒 ⟩, ⟨(.r‘ndx), ·e ⟩} ∈ V
3		tpex 7744	. . 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 7742	. 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 2857	1 ⊢ ℝ*𝑠 ∈ V

Syntax hints:   ∈ wcel 2141  Vcvv 3453   ∪ cun 3902  ifcif 4486  {ctp 4592  ⟨cop 4594   class class class wbr 5108  ‘cfv 6536  (class class class)co 7410   ∈ cmpo 7412  ℝ^*cxr 11241   ≤ cle 11243  -_𝑒cxne 13133   +_𝑒 cxad 13134   ·_e cxmu 13135  ndxcnx 17252  Basecbs 17268  +_gcplusg 17309  ._rcmulr 17310  TopSetcts 17315  lecple 17316  distcds 17318  ordTopcordt 17552  ℝ^*_𝑠cxrs 17553

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1823  ax-4 1837  ax-5 1938  ax-6 1995  ax-7 2036  ax-8 2143  ax-9 2151  ax-ext 2733  ax-sep 5256  ax-pr 5404  ax-un 7732

This theorem depends on definitions:  df-bi 210  df-an 401  df-or 861  df-tru 1571  df-ex 1808  df-sb 2095  df-clab 2740  df-cleq 2753  df-clel 2836  df-v 3455  df-un 3909  df-ss 3921  df-sn 4589  df-pr 4591  df-tp 4593  df-uni 4872  df-xrs 17555

This theorem is referenced by:  imasdsf1olem  24509  xrslt  33293  xrsmulgzz  33295  xrstos  33296  xrsp0  33298  xrsp1  33299  pnfinf  33469  xrnarchi  33470