Nuprl Lemma : rv-mul-sep2

∀rv:RealVectorSpace. ∀a:ℝ. ∀x,y:Point.  (a*x # a*y ⇒ x # y)


Proof




Definitions occuring in Statement :  rv-mul: a*x,  real-vector-space: RealVectorSpace,  ss-sep: x # y,  ss-point: Point,  real: ℝ,  all: ∀x:A. B[x],  implies: P ⇒ Q
Definitions unfolded in proof :  top: Top,  not: ¬A,  exists: ∃x:A. B[x],  satisfiable_int_formula: satisfiable_int_formula(fmla),  uimplies: b supposing a,  and: P ∧ Q,  squash: ↓T,  less_than: a < b,  nat_plus: ℕ+,  false: False,  sq_exists: ∃x:{A| B[x]},  rless: x < y,  rneq: x ≠ y,  or: P ∨ Q,  subtype_rel: A ⊆r B,  uall: ∀[x:A]. B[x],  prop: ℙ,  implies: P ⇒ Q,  member: t ∈ T,  all: ∀x:A. B[x]
Lemmas referenced :  int_formula_prop_wf,  int_term_value_constant_lemma,  int_term_value_var_lemma,  int_term_value_add_lemma,  int_formula_prop_less_lemma,  itermConstant_wf,  itermVar_wf,  itermAdd_wf,  intformless_wf,  satisfiable-full-omega-tt,  nat_plus_properties,  real-vector-space_wf,  real_wf,  ss-point_wf,  rv-mul_wf,  real-vector-space_subtype1,  ss-sep_wf,  rv-mul-sep
Rules used in proof :  independent_functionElimination,  computeAll,  voidEquality,  voidElimination,  isect_memberEquality,  intEquality,  int_eqEquality,  lambdaEquality,  dependent_pairFormation,  independent_isectElimination,  natural_numberEquality,  productElimination,  imageElimination,  rename,  setElimination,  unionElimination,  because_Cache,  sqequalRule,  applyEquality,  isectElimination,  hypothesisEquality,  thin,  dependent_functionElimination,  sqequalHypSubstitution,  hypothesis,  lambdaFormation,  sqequalReflexivity,  computationStep,  sqequalTransitivity,  sqequalSubstitution,  extract_by_obid,  introduction,  cut

Latex:
\mforall{}rv:RealVectorSpace.  \mforall{}a:\mBbbR{}.  \mforall{}x,y:Point.    (a*x  \#  a*y  {}\mRightarrow{}  x  \#  y)



Date html generated: 2016_11_08-AM-09_13_45
Last ObjectModification: 2016_11_02-PM-00_48_10

Theory : inner!product!spaces


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