Nuprl Lemma : rccp-dist_wf

∀[k,n:ℕ]. ∀[K:{K:n-dim-complex| 0 < ||K||} ]. ∀[x:ℝ^k].  (dist(x, |K|) ∈ ℝ)


Proof




Definitions occuring in Statement :  rccp-dist: dist(x, |K|),  real-vec: ℝ^n,  real: ℝ,  length: ||as||,  nat: ℕ,  less_than: a < b,  uall: ∀[x:A]. B[x],  member: t ∈ T,  set: {x:A| B[x]} ,  natural_number: $n,  rational-cube-complex: n-dim-complex
Definitions unfolded in proof :  rat-cube-complex-polyhedron: |K|,  subtype_rel: A ⊆r B,  uimplies: b supposing a,  rational-cube-complex: n-dim-complex,  rccp-dist: dist(x, |K|),  member: t ∈ T,  uall: ∀[x:A]. B[x]
Lemmas referenced :  istype-nat,  rational-cube-complex_wf,  rational-cube_wf,  length_wf,  istype-less_than,  rccp-compact_wf,  rat-cube-complex-polyhedron_wf,  rn-prod-metric_wf,  real-vec_wf,  compact-dist_wf
Rules used in proof :  setIsType,  inhabitedIsType,  isectIsTypeImplies,  isect_memberEquality_alt,  equalitySymmetry,  equalityTransitivity,  axiomEquality,  natural_numberEquality,  dependent_set_memberEquality_alt,  universeIsType,  lambdaEquality_alt,  independent_isectElimination,  because_Cache,  hypothesis,  hypothesisEquality,  isectElimination,  sqequalHypSubstitution,  extract_by_obid,  sqequalRule,  rename,  thin,  setElimination,  cut,  introduction,  isect_memberFormation_alt,  sqequalReflexivity,  computationStep,  sqequalTransitivity,  sqequalSubstitution

Latex:
\mforall{}[k,n:\mBbbN{}].  \mforall{}[K:\{K:n-dim-complex|  0  <  ||K||\}  ].  \mforall{}[x:\mBbbR{}\^{}k].    (dist(x,  |K|)  \mmember{}  \mBbbR{})



Date html generated: 2019_10_31-AM-06_04_14
Last ObjectModification: 2019_10_30-PM-04_20_05

Theory : real!vectors


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