Nuprl Lemma : qexp-mul

∀[m,n:ℕ]. ∀[b:ℚ].  (b ↑ n * m = b ↑ n ↑ m ∈ ℚ)


Proof




Definitions occuring in Statement :  qexp: r ↑ n,  rationals: ℚ,  nat: ℕ,  uall: ∀[x:A]. B[x],  multiply: n * m,  equal: s = t ∈ T
Definitions unfolded in proof :  uall: ∀[x:A]. B[x],  member: t ∈ T,  nat: ℕ,  implies: P ⇒ Q,  false: False,  ge: i ≥ j ,  uimplies: b supposing a,  satisfiable_int_formula: satisfiable_int_formula(fmla),  exists: ∃x:A. B[x],  not: ¬A,  all: ∀x:A. B[x],  top: Top,  and: P ∧ Q,  prop: ℙ,  squash: ↓T,  so_lambda: λ2x.t[x],  decidable: Dec(P),  or: P ∨ Q,  true: True,  so_apply: x[s],  subtype_rel: A ⊆r B,  guard: {T},  iff: P ⇐⇒ Q,  rev_implies: P ⇐ Q,  nat_plus: ℕ+,  subtract: n - m
Lemmas referenced :  nat_properties,  satisfiable-full-omega-tt,  intformand_wf,  intformle_wf,  itermConstant_wf,  itermVar_wf,  intformless_wf,  int_formula_prop_and_lemma,  int_formula_prop_le_lemma,  int_term_value_constant_lemma,  int_term_value_var_lemma,  int_formula_prop_less_lemma,  int_formula_prop_wf,  ge_wf,  less_than_wf,  rationals_wf,  nat_wf,  uall_wf,  squash_wf,  true_wf,  equal_wf,  qexp_wf,  decidable__le,  intformnot_wf,  itermMultiply_wf,  int_formula_prop_not_lemma,  int_term_value_mul_lemma,  le_wf,  exp_zero_q,  iff_weakening_equal,  subtract_wf,  itermSubtract_wf,  int_term_value_subtract_lemma,  int-subtype-rationals,  mul-commutes,  zero-mul,  qexp-zero,  mul_bounds_1a,  exp_unroll_q,  qmul_wf,  qexp-add,  mul-distributes,  add-associates,  add-swap,  add-commutes,  add-mul-special,  zero-add
Rules used in proof :  sqequalSubstitution,  sqequalTransitivity,  computationStep,  sqequalReflexivity,  isect_memberFormation,  introduction,  cut,  extract_by_obid,  sqequalHypSubstitution,  isectElimination,  thin,  hypothesisEquality,  hypothesis,  setElimination,  rename,  intWeakElimination,  lambdaFormation,  natural_numberEquality,  independent_isectElimination,  dependent_pairFormation,  lambdaEquality,  int_eqEquality,  intEquality,  dependent_functionElimination,  isect_memberEquality,  voidElimination,  voidEquality,  sqequalRule,  independent_pairFormation,  computeAll,  independent_functionElimination,  axiomEquality,  applyEquality,  imageElimination,  equalityTransitivity,  equalitySymmetry,  functionEquality,  cumulativity,  universeEquality,  because_Cache,  dependent_set_memberEquality,  multiplyEquality,  unionElimination,  imageMemberEquality,  baseClosed,  productElimination,  minusEquality

Latex:
\mforall{}[m,n:\mBbbN{}].  \mforall{}[b:\mBbbQ{}].    (b  \muparrow{}  n  *  m  =  b  \muparrow{}  n  \muparrow{}  m)



Date html generated: 2018_05_22-AM-00_01_15
Last ObjectModification: 2017_07_26-PM-06_50_03

Theory : rationals


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