Nuprl Lemma : p2-incidence

∀[p,v:ℙ^2].  uiff(v on p;((((v 0) * (p 0)) + ((v 1) * (p 1))) - (v 2) * (p 2)) = r0)


Proof




Definitions occuring in Statement :  proj-incidence: v on p,  real-proj: ℙ^n,  rsub: x - y,  req: x = y,  rmul: a * b,  radd: a + b,  int-to-real: r(n),  uiff: uiff(P;Q),  uall: ∀[x:A]. B[x],  apply: f a,  natural_number: $n
Definitions unfolded in proof :  uall: ∀[x:A]. B[x],  member: t ∈ T,  uiff: uiff(P;Q),  and: P ∧ Q,  uimplies: b supposing a,  real-proj: ℙ^n,  real-vec: ℝ^n,  int_seg: {i..j-},  lelt: i ≤ j < k,  le: A ≤ B,  less_than': less_than'(a;b),  false: False,  not: ¬A,  implies: P ⇒ Q,  prop: ℙ,  less_than: a < b,  squash: ↓T,  true: True,  nat: ℕ,  proj-incidence: v on p,  subtype_rel: A ⊆r B,  proj-rev: proj-rev(n;p),  dot-product: x⋅y,  subtract: n - m,  so_lambda: λ2x.t[x],  so_apply: x[s],  all: ∀x:A. B[x],  bool: 𝔹,  unit: Unit,  it: ⋅,  btrue: tt,  ifthenelse: if b then t else f fi ,  bfalse: ff,  exists: ∃x:A. B[x],  or: P ∨ Q,  sq_type: SQType(T),  guard: {T},  bnot: ¬bb,  assert: ↑b,  nequal: a ≠ b ∈ T ,  decidable: Dec(P),  satisfiable_int_formula: satisfiable_int_formula(fmla),  top: Top,  lt_int: i <z j,  eq_int: (i =z j),  req_int_terms: t1 ≡ t2,  rev_uimplies: rev_uimplies(P;Q)
Lemmas referenced :  req_witness,  rsub_wf,  radd_wf,  rmul_wf,  false_wf,  lelt_wf,  int-to-real_wf,  proj-incidence_wf,  le_wf,  dot-product_wf,  proj-rev_wf,  real-proj_wf,  req_wf,  rsum_wf,  ifthenelse_wf,  lt_int_wf,  real_wf,  rminus_wf,  int_seg_wf,  bool_wf,  eqtt_to_assert,  assert_of_lt_int,  eqff_to_assert,  equal_wf,  bool_cases_sqequal,  subtype_base_sq,  bool_subtype_base,  assert-bnot,  less_than_wf,  eq_int_wf,  assert_of_eq_int,  int_subtype_base,  neg_assert_of_eq_int,  subtract_wf,  subtract-add-cancel,  decidable__lt,  full-omega-unsat,  intformand_wf,  intformnot_wf,  intformless_wf,  itermVar_wf,  itermAdd_wf,  itermConstant_wf,  int_formula_prop_and_lemma,  int_formula_prop_not_lemma,  int_formula_prop_less_lemma,  int_term_value_var_lemma,  int_term_value_add_lemma,  int_term_value_constant_lemma,  int_formula_prop_wf,  req-implies-req,  itermSubtract_wf,  itermMultiply_wf,  itermMinus_wf,  req-iff-rsub-is-0,  req_functionality,  rsum_unroll,  req_weakening,  radd_functionality,  rsum_single,  real_polynomial_null,  real_term_value_sub_lemma,  real_term_value_const_lemma,  real_term_value_add_lemma,  real_term_value_mul_lemma,  real_term_value_var_lemma,  real_term_value_minus_lemma
Rules used in proof :  sqequalSubstitution,  sqequalTransitivity,  computationStep,  sqequalReflexivity,  isect_memberFormation,  introduction,  cut,  independent_pairFormation,  extract_by_obid,  sqequalHypSubstitution,  isectElimination,  thin,  applyEquality,  setElimination,  rename,  because_Cache,  hypothesis,  sqequalRule,  dependent_set_memberEquality,  natural_numberEquality,  lambdaFormation,  imageMemberEquality,  hypothesisEquality,  baseClosed,  independent_functionElimination,  addEquality,  lambdaEquality,  productElimination,  independent_pairEquality,  isect_memberEquality,  equalityTransitivity,  equalitySymmetry,  unionElimination,  equalityElimination,  independent_isectElimination,  dependent_pairFormation,  promote_hyp,  dependent_functionElimination,  instantiate,  cumulativity,  voidElimination,  intEquality,  approximateComputation,  int_eqEquality,  voidEquality

Latex:
\mforall{}[p,v:\mBbbP{}\^{}2].    uiff(v  on  p;((((v  0)  *  (p  0))  +  ((v  1)  *  (p  1)))  -  (v  2)  *  (p  2))  =  r0)



Date html generated: 2017_10_05-AM-00_19_55
Last ObjectModification: 2017_06_17-AM-10_08_53

Theory : inner!product!spaces


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