Nuprl Lemma : rv-partial-sum-unroll

∀[m:ℕ+]. ∀[X:Top].  (rv-partial-sum(m;i.X[i]) ~ rv-partial-sum(m - 1;i.X[i]) + X[m - 1])


Proof




Definitions occuring in Statement :  rv-partial-sum: rv-partial-sum(n;i.X[i]),  rv-add: X + Y,  nat_plus: ℕ+,  uall: ∀[x:A]. B[x],  top: Top,  so_apply: x[s],  subtract: n - m,  natural_number: $n,  sqequal: s ~ t
Definitions unfolded in proof :  uall: ∀[x:A]. B[x],  member: t ∈ T,  rv-partial-sum: rv-partial-sum(n;i.X[i]),  rv-add: X + Y,  qsum: Σa ≤ j < b. E[j],  rng_sum: rng_sum,  mon_itop: Π lb ≤ i < ub. E[i],  add_grp_of_rng: r↓+gp,  grp_op: *,  pi2: snd(t),  pi1: fst(t),  grp_id: e,  qrng: <ℚ+*>,  rng_plus: +r,  rng_zero: 0,  itop: Π(op,id) lb ≤ i < ub. E[i],  ycomb: Y,  nat_plus: ℕ+,  infix_ap: x f y,  uimplies: b supposing a,  satisfiable_int_formula: satisfiable_int_formula(fmla),  exists: ∃x:A. B[x],  false: False,  implies: P ⇒ Q,  not: ¬A,  all: ∀x:A. B[x],  top: Top,  and: P ∧ Q,  prop: ℙ,  bool: 𝔹,  unit: Unit,  it: ⋅,  btrue: tt,  uiff: uiff(P;Q),  ifthenelse: if b then t else f fi ,  bfalse: ff,  guard: {T}
Lemmas referenced :  top_wf,  nat_plus_wf,  lt_int_wf,  bool_wf,  equal-wf-T-base,  assert_wf,  less_than_wf,  le_int_wf,  le_wf,  bnot_wf,  nat_plus_properties,  satisfiable-full-omega-tt,  intformand_wf,  intformle_wf,  itermVar_wf,  itermConstant_wf,  intformless_wf,  int_formula_prop_and_lemma,  int_formula_prop_le_lemma,  int_term_value_var_lemma,  int_term_value_constant_lemma,  int_formula_prop_less_lemma,  int_formula_prop_wf,  uiff_transitivity,  eqtt_to_assert,  assert_of_lt_int,  eqff_to_assert,  assert_functionality_wrt_uiff,  bnot_of_lt_int,  assert_of_le_int,  equal_wf
Rules used in proof :  sqequalSubstitution,  sqequalTransitivity,  computationStep,  sqequalReflexivity,  isect_memberFormation,  introduction,  cut,  sqequalRule,  hypothesis,  sqequalAxiom,  extract_by_obid,  sqequalHypSubstitution,  isect_memberEquality,  isectElimination,  thin,  hypothesisEquality,  because_Cache,  natural_numberEquality,  setElimination,  rename,  equalityTransitivity,  equalitySymmetry,  baseClosed,  independent_isectElimination,  dependent_pairFormation,  lambdaEquality,  int_eqEquality,  intEquality,  dependent_functionElimination,  voidElimination,  voidEquality,  independent_pairFormation,  computeAll,  lambdaFormation,  unionElimination,  equalityElimination,  independent_functionElimination,  productElimination

Latex:
\mforall{}[m:\mBbbN{}\msupplus{}].  \mforall{}[X:Top].    (rv-partial-sum(m;i.X[i])  \msim{}  rv-partial-sum(m  -  1;i.X[i])  +  X[m  -  1])



Date html generated: 2018_05_22-AM-00_38_04
Last ObjectModification: 2017_07_26-PM-07_00_48

Theory : randomness


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