Nuprl Lemma : assert-in-missing-nat-iff

∀i:ℕ. ∀missing:{l:ℕ List| l-ordered(ℕ;x,y.x < y;l)} .  (↑in-missing(i;missing) ⇐⇒ (i ∈ missing))


Proof




Definitions occuring in Statement :  in-missing: in-missing(i;missing),  l_member: (x ∈ l),  list: T List,  nat: ℕ,  assert: ↑b,  less_than: a < b,  all: ∀x:A. B[x],  iff: P ⇐⇒ Q,  set: {x:A| B[x]} 
Definitions unfolded in proof :  all: ∀x:A. B[x],  iff: P ⇐⇒ Q,  and: P ∧ Q,  implies: P ⇒ Q,  member: t ∈ T,  prop: ℙ,  uall: ∀[x:A]. B[x],  nat: ℕ,  subtype_rel: A ⊆r B,  uimplies: b supposing a,  rev_implies: P ⇐ Q,  sq_stable: SqStable(P),  so_lambda: λ2x.t[x],  so_lambda: λ2x y.t[x; y],  so_apply: x[s1;s2],  so_apply: x[s],  false: False,  in-missing: in-missing(i;missing),  top: Top,  uiff: uiff(P;Q),  or: P ∨ Q,  cand: A c∧ B,  guard: {T},  ge: i ≥ j ,  decidable: Dec(P),  satisfiable_int_formula: satisfiable_int_formula(fmla),  exists: ∃x:A. B[x],  not: ¬A,  squash: ↓T

Latex:
\mforall{}i:\mBbbN{}.  \mforall{}missing:\{l:\mBbbN{}  List|  l-ordered(\mBbbN{};x,y.x  <  y;l)\}  .    (\muparrow{}in-missing(i;missing)  \mLeftarrow{}{}\mRightarrow{}  (i  \mmember{}  missing))



Date html generated: 2016_05_17-PM-01_44_48
Last ObjectModification: 2016_01_17-AM-11_37_16

Theory : datatype-signatures


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