Nuprl Lemma : regular-int-seq-weakening

[n,k:ℤ]. ∀[f:ℕ+ ⟶ ℤ].  (k-regular-seq(f)) supposing (n-regular-seq(f) and (n ≤ k))


Proof




Definitions occuring in Statement :  regular-int-seq: k-regular-seq(f) nat_plus: + uimplies: supposing a uall: [x:A]. B[x] le: A ≤ B function: x:A ⟶ B[x] int:
Definitions unfolded in proof :  uall: [x:A]. B[x] member: t ∈ T uimplies: supposing a regular-int-seq: k-regular-seq(f) all: x:A. B[x] nat: nat_plus: + decidable: Dec(P) or: P ∨ Q not: ¬A implies:  Q satisfiable_int_formula: satisfiable_int_formula(fmla) exists: x:A. B[x] false: False top: Top and: P ∧ Q prop: le: A ≤ B subtype_rel: A ⊆B
Lemmas referenced :  mul_preserves_le nat_plus_properties decidable__le full-omega-unsat intformand_wf intformnot_wf intformle_wf itermConstant_wf itermMultiply_wf itermAdd_wf itermVar_wf intformless_wf int_formula_prop_and_lemma int_formula_prop_not_lemma int_formula_prop_le_lemma int_term_value_constant_lemma int_term_value_mul_lemma int_term_value_add_lemma int_term_value_var_lemma int_formula_prop_less_lemma int_formula_prop_wf le_wf nat_plus_wf less_than'_wf absval_wf subtract_wf nat_wf regular-int-seq_wf
Rules used in proof :  sqequalSubstitution sqequalTransitivity computationStep sqequalReflexivity isect_memberFormation introduction cut sqequalHypSubstitution lambdaFormation hypothesis dependent_functionElimination thin hypothesisEquality extract_by_obid isectElimination dependent_set_memberEquality multiplyEquality natural_numberEquality addEquality setElimination rename unionElimination independent_isectElimination approximateComputation independent_functionElimination dependent_pairFormation lambdaEquality int_eqEquality intEquality isect_memberEquality voidElimination voidEquality sqequalRule independent_pairFormation productElimination because_Cache independent_pairEquality applyEquality functionExtensionality axiomEquality equalityTransitivity equalitySymmetry functionEquality

Latex:
\mforall{}[n,k:\mBbbZ{}].  \mforall{}[f:\mBbbN{}\msupplus{}  {}\mrightarrow{}  \mBbbZ{}].    (k-regular-seq(f))  supposing  (n-regular-seq(f)  and  (n  \mleq{}  k))



Date html generated: 2017_10_02-PM-07_12_56
Last ObjectModification: 2017_07_05-PM-03_38_43

Theory : reals


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