Nuprl Lemma : weak-continuity-principle-nat+-int-bool-ext

F:(ℕ+ ⟶ ℤ) ⟶ 𝔹. ∀f:ℕ+ ⟶ ℤ. ∀G:n:ℕ+ ⟶ {g:ℕ+ ⟶ ℤg ∈ (ℕ+n ⟶ ℤ)} .  ∃n:ℕ+(G n)


Proof




Definitions occuring in Statement :  int_seg: {i..j-} nat_plus: + bool: 𝔹 all: x:A. B[x] exists: x:A. B[x] set: {x:A| B[x]}  apply: a function: x:A ⟶ B[x] natural_number: $n int: equal: t ∈ T
Definitions unfolded in proof :  member: t ∈ T weak-continuity-principle-nat+-int-bool
Lemmas referenced :  weak-continuity-principle-nat+-int-bool
Rules used in proof :  introduction sqequalSubstitution sqequalTransitivity computationStep sqequalReflexivity cut instantiate extract_by_obid hypothesis sqequalRule thin sqequalHypSubstitution equalityTransitivity equalitySymmetry

Latex:
\mforall{}F:(\mBbbN{}\msupplus{}  {}\mrightarrow{}  \mBbbZ{})  {}\mrightarrow{}  \mBbbB{}.  \mforall{}f:\mBbbN{}\msupplus{}  {}\mrightarrow{}  \mBbbZ{}.  \mforall{}G:n:\mBbbN{}\msupplus{}  {}\mrightarrow{}  \{g:\mBbbN{}\msupplus{}  {}\mrightarrow{}  \mBbbZ{}|  f  =  g\}  .    \mexists{}n:\mBbbN{}\msupplus{}.  F  f  =  F  (G  n)



Date html generated: 2017_09_29-PM-06_06_13
Last ObjectModification: 2017_07_08-PM-00_16_07

Theory : continuity


Home Index