Theorem xrsex 21341

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 17424	. 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 7691	. . 3 ⊢ {⟨(Base‘ndx), ℝ*⟩, ⟨(+g‘ndx), +𝑒 ⟩, ⟨(.r‘ndx), ·e ⟩} ∈ V
3		tpex 7691	. . 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 7689	. 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 2833	1 ⊢ ℝ*𝑠 ∈ V

Syntax hints:   ∈ wcel 2114  Vcvv 3430   ∪ cun 3888  ifcif 4467  {ctp 4572  ⟨cop 4574   class class class wbr 5086  ‘cfv 6490  (class class class)co 7358   ∈ cmpo 7360  ℝ^*cxr 11166   ≤ cle 11168  -_𝑒cxne 13024   +_𝑒 cxad 13025   ·_e cxmu 13026  ndxcnx 17121  Basecbs 17137  +_gcplusg 17178  ._rcmulr 17179  TopSetcts 17184  lecple 17185  distcds 17187  ordTopcordt 17421  ℝ^*_𝑠cxrs 17422

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 1912  ax-6 1969  ax-7 2010  ax-8 2116  ax-9 2124  ax-ext 2709  ax-sep 5231  ax-pr 5368  ax-un 7680

This theorem depends on definitions:  df-bi 207  df-an 396  df-or 849  df-tru 1545  df-ex 1782  df-sb 2069  df-clab 2716  df-cleq 2729  df-clel 2812  df-v 3432  df-un 3895  df-ss 3907  df-sn 4569  df-pr 4571  df-tp 4573  df-uni 4852  df-xrs 17424

This theorem is referenced by:  imasdsf1olem  24316  xrslt  33072  xrsmulgzz  33074  xrstos  33075  xrsp0  33077  xrsp1  33078  pnfinf  33249  xrnarchi  33250