Theorem xrsex 21371

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 17464	. 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 7696	. . 3 ⊢ {⟨(Base‘ndx), ℝ*⟩, ⟨(+g‘ndx), +𝑒 ⟩, ⟨(.r‘ndx), ·e ⟩} ∈ V
3		tpex 7696	. . 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 7694	. 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 2836	1 ⊢ ℝ*𝑠 ∈ V

Syntax hints:   ∈ wcel 2119  Vcvv 3432   ∪ cun 3888  ifcif 4461  {ctp 4566  ⟨cop 4568   class class class wbr 5079  ‘cfv 6492  (class class class)co 7363   ∈ cmpo 7365  ℝ^*cxr 11176   ≤ cle 11178  -_𝑒cxne 13058   +_𝑒 cxad 13059   ·_e cxmu 13060  ndxcnx 17161  Basecbs 17177  +_gcplusg 17218  ._rcmulr 17219  TopSetcts 17224  lecple 17225  distcds 17227  ordTopcordt 17461  ℝ^*_𝑠cxrs 17462

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1802  ax-4 1816  ax-5 1917  ax-6 1974  ax-7 2015  ax-8 2121  ax-9 2129  ax-ext 2712  ax-sep 5225  ax-pr 5369  ax-un 7685

This theorem depends on definitions:  df-bi 208  df-an 397  df-or 854  df-tru 1550  df-ex 1787  df-sb 2074  df-clab 2719  df-cleq 2732  df-clel 2815  df-v 3434  df-un 3895  df-ss 3907  df-sn 4563  df-pr 4565  df-tp 4567  df-uni 4846  df-xrs 17464

This theorem is referenced by:  imasdsf1olem  24363  xrslt  33093  xrsmulgzz  33095  xrstos  33096  xrsp0  33098  xrsp1  33099  pnfinf  33271  xrnarchi  33272