Nuprl Lemma : ws-constant

∀[a:ℚ]. ∀[p:FinProbSpace]. ∀[F:Outcome ─→ ℚ].  weighted-sum(p;F) = a ∈ ℚ supposing ∀x:Outcome. ((F x) = a ∈ ℚ)


Proof




Definitions occuring in Statement :  weighted-sum: weighted-sum(p;F),  p-outcome: Outcome,  finite-prob-space: FinProbSpace,  uimplies: b supposing a,  uall: ∀[x:A]. B[x],  all: ∀x:A. B[x],  apply: f a,  function: x:A ─→ B[x],  equal: s = t ∈ T,  rationals: ℚ
Lemmas :  all_wf,  int_seg_wf,  length_wf,  rationals_wf,  equal_wf,  set_wf,  list_wf,  equal-wf-T-base,  Error :qsum_wf,  select_wf,  sq_stable__le,  l_all_wf2,  l_member_wf,  Error :qle_wf,  int-subtype-rationals,  squash_wf,  true_wf,  qmul_wf,  iff_weakening_equal,  Error :prod_sum_l_q,  non_neg_length,  length_wf_nat,  Error :qmul_one_qrng
\mforall{}[a:\mBbbQ{}].  \mforall{}[p:FinProbSpace].  \mforall{}[F:Outcome  {}\mrightarrow{}  \mBbbQ{}].
    weighted-sum(p;F)  =  a  supposing  \mforall{}x:Outcome.  ((F  x)  =  a)



Date html generated: 2015_07_17-AM-07_58_28
Last ObjectModification: 2015_02_03-PM-09_44_12

Home Index