Nuprl Lemma : r2-line-sep_wf

∀l,m:r2-line.  (r2-line-sep(l;m) ∈ ℙ)


Proof




Definitions occuring in Statement :  r2-line-sep: r2-line-sep(l;m),  r2-line: r2-line,  prop: ℙ,  all: ∀x:A. B[x],  member: t ∈ T
Definitions unfolded in proof :  so_apply: x[s],  pi2: snd(t),  pi1: fst(t),  r2-line: r2-line,  so_lambda: λ2x.t[x],  prop: ℙ,  implies: P ⇒ Q,  not: ¬A,  false: False,  less_than': less_than'(a;b),  and: P ∧ Q,  le: A ≤ B,  nat: ℕ,  uall: ∀[x:A]. B[x],  r2-line-sep: r2-line-sep(l;m),  member: t ∈ T,  all: ∀x:A. B[x]
Lemmas referenced :  r2-line_wf,  rneq_wf,  int-to-real_wf,  r2-det_wf,  req_wf,  le_wf,  false_wf,  real-vec_wf,  exists_wf
Rules used in proof :  because_Cache,  productElimination,  productEquality,  lambdaEquality,  hypothesisEquality,  hypothesis,  independent_pairFormation,  natural_numberEquality,  dependent_set_memberEquality,  thin,  isectElimination,  sqequalHypSubstitution,  extract_by_obid,  introduction,  sqequalRule,  cut,  lambdaFormation,  sqequalReflexivity,  computationStep,  sqequalTransitivity,  sqequalSubstitution

Latex:
\mforall{}l,m:r2-line.    (r2-line-sep(l;m)  \mmember{}  \mBbbP{})



Date html generated: 2018_07_29-AM-09_46_59
Last ObjectModification: 2018_07_02-PM-04_05_16

Theory : reals!model!euclidean!geometry


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