Nuprl Lemma : qexp-eq-q-rng-nexp

∀[n:ℕ]. ∀[r:ℚ].  (r ↑ n = q-rng-nexp(r;n) ∈ ℚ)


Proof




Definitions occuring in Statement :  qexp: r ↑ n,  q-rng-nexp: q-rng-nexp(r;n),  rationals: ℚ,  nat: ℕ,  uall: ∀[x:A]. B[x],  equal: s = t ∈ T
Definitions unfolded in proof :  uall: ∀[x:A]. B[x],  member: t ∈ T,  qexp: r ↑ n,  has-value: (a)↓,  uimplies: b supposing a,  nat: ℕ,  so_lambda: λ2x.t[x],  so_apply: x[s],  all: ∀x:A. B[x],  implies: P ⇒ Q,  prop: ℙ,  nat_plus: ℕ+,  subtype_rel: A ⊆r B,  int_nzero: ℤ-o,  nequal: a ≠ b ∈ T ,  not: ¬A,  false: False,  guard: {T},  ge: i ≥ j ,  satisfiable_int_formula: satisfiable_int_formula(fmla),  exists: ∃x:A. B[x],  top: Top,  and: P ∧ Q,  mk-rational: mk-rational(a;b),  rationals: ℚ,  so_lambda: λ2x y.t[x; y],  so_apply: x[s1;s2],  q-rng-nexp: q-rng-nexp(r;n),  rng_nexp: e ↑r n,  mon_nat_op: n ⋅ e,  mul_mon_of_rng: r↓xmn,  grp_op: *,  pi2: snd(t),  pi1: fst(t),  grp_id: e,  qrng: <ℚ+*>,  rng_times: *,  rng_one: 1,  nat_op: n x(op;id) e,  itop: Π(op,id) lb ≤ i < ub. E[i],  infix_ap: x f y,  ycomb: Y,  lt_int: i <z j,  subtract: n - m,  ifthenelse: if b then t else f fi ,  bfalse: ff,  decidable: Dec(P),  or: P ∨ Q,  bool: 𝔹,  unit: Unit,  it: ⋅,  btrue: tt,  uiff: uiff(P;Q),  sq_type: SQType(T),  bnot: ¬bb,  assert: ↑b,  true: True,  squash: ↓T,  iff: P ⇐⇒ Q,  rev_implies: P ⇐ Q,  b-union: A ⋃ B,  tunion: ⋃x:A.B[x],  rev_uimplies: rev_uimplies(P;Q),  qeq: qeq(r;s),  callbyvalueall: callbyvalueall,  evalall: evalall(t),  eq_int: (i =z j),  qmul: r * s,  has-valueall: has-valueall(a)
Lemmas referenced :  value-type-has-value,  nat_wf,  set-value-type,  le_wf,  int-value-type,  qrep_wf,  nat_plus_wf,  equal_wf,  rationals_wf,  mk-rational_wf,  exp_wf2,  exp_wf3,  subtype_rel_sets,  less_than_wf,  nequal_wf,  nat_plus_properties,  nat_properties,  satisfiable-full-omega-tt,  intformand_wf,  intformeq_wf,  itermVar_wf,  itermConstant_wf,  intformless_wf,  int_formula_prop_and_lemma,  int_formula_prop_eq_lemma,  int_term_value_var_lemma,  int_term_value_constant_lemma,  int_formula_prop_less_lemma,  int_formula_prop_wf,  equal-wf-base,  int_subtype_base,  q-rng-nexp_wf,  exp-fastexp,  equals-qrep,  subtype_rel_transitivity,  b-union_wf,  int_nzero_wf,  subtype_quotient,  equal-wf-T-base,  bool_wf,  qeq_wf,  qeq-equiv,  subtype_rel_b-union-right,  subtype_rel_b-union,  subtype_rel_self,  subtype_rel_product,  intformle_wf,  int_formula_prop_le_lemma,  ge_wf,  exp0_lemma,  decidable__le,  subtract_wf,  intformnot_wf,  itermSubtract_wf,  int_formula_prop_not_lemma,  int_term_value_subtract_lemma,  lt_int_wf,  eqtt_to_assert,  assert_of_lt_int,  eqff_to_assert,  bool_cases_sqequal,  subtype_base_sq,  bool_subtype_base,  assert-bnot,  squash_wf,  true_wf,  qmul_wf,  iff_weakening_equal,  quotient-member-eq,  bfalse_wf,  ifthenelse_wf,  subtype_rel_b-union-left,  iff_imp_equal_bool,  qeq_wf2,  int-subtype-rationals,  btrue_wf,  assert-qeq,  assert_wf,  iff_wf,  valueall-type-has-valueall,  rationals-valueall-type,  evalall-reduce,  exp_step,  decidable__equal_int,  itermMultiply_wf,  int_term_value_mul_lemma,  mul_nzero
Rules used in proof :  sqequalSubstitution,  sqequalTransitivity,  computationStep,  sqequalReflexivity,  isect_memberFormation,  introduction,  cut,  sqequalRule,  callbyvalueReduce,  extract_by_obid,  sqequalHypSubstitution,  isectElimination,  thin,  hypothesis,  independent_isectElimination,  intEquality,  lambdaEquality,  natural_numberEquality,  hypothesisEquality,  productEquality,  lambdaFormation,  productElimination,  equalityTransitivity,  equalitySymmetry,  dependent_functionElimination,  independent_functionElimination,  isect_memberEquality,  axiomEquality,  because_Cache,  setElimination,  rename,  hyp_replacement,  applyLambdaEquality,  applyEquality,  setEquality,  dependent_pairFormation,  int_eqEquality,  voidElimination,  voidEquality,  independent_pairFormation,  computeAll,  baseClosed,  intWeakElimination,  unionElimination,  equalityElimination,  promote_hyp,  instantiate,  cumulativity,  dependent_set_memberEquality,  imageElimination,  universeEquality,  imageMemberEquality,  dependent_pairEquality,  independent_pairEquality,  addLevel,  impliesFunctionality,  multiplyEquality

Latex:
\mforall{}[n:\mBbbN{}].  \mforall{}[r:\mBbbQ{}].    (r  \muparrow{}  n  =  q-rng-nexp(r;n))



Date html generated: 2018_05_21-PM-11_59_04
Last ObjectModification: 2017_07_26-PM-06_48_28

Theory : rationals


Home Index