Nuprl Lemma : qexp-qmul

[a,b:ℚ]. ∀[n:ℕ].  (a b ↑ (a ↑ b ↑ n) ∈ ℚ)


Proof




Definitions occuring in Statement :  qexp: r ↑ n qmul: s rationals: nat: uall: [x:A]. B[x] equal: t ∈ T
Definitions unfolded in proof :  uall: [x:A]. B[x] member: t ∈ T nat: implies:  Q false: False ge: i ≥  uimplies: 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: decidable: Dec(P) or: P ∨ Q true: True squash: T subtype_rel: A ⊆B guard: {T} iff: ⇐⇒ Q rev_implies:  Q nat_plus: +
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 decidable__le subtract_wf intformnot_wf itermSubtract_wf int_formula_prop_not_lemma int_term_value_subtract_lemma nat_wf rationals_wf qmul_wf equal_wf int-subtype-rationals qmul_ident iff_weakening_equal qexp_wf squash_wf true_wf exp_zero_q exp_unroll_q le_wf qmul_assoc_qrng qmul_ac_1_qrng
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 unionElimination because_Cache applyEquality imageElimination imageMemberEquality baseClosed equalityTransitivity equalitySymmetry productElimination dependent_set_memberEquality universeEquality hyp_replacement applyLambdaEquality

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



Date html generated: 2018_05_22-AM-00_01_04
Last ObjectModification: 2017_07_26-PM-06_49_52

Theory : rationals


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