Nuprl Lemma : append-finite-nat-seq_wf

[f,g:finite-nat-seq()].  (f**g ∈ finite-nat-seq())


Proof




Definitions occuring in Statement :  append-finite-nat-seq: f**g finite-nat-seq: finite-nat-seq() uall: [x:A]. B[x] member: t ∈ T
Definitions unfolded in proof :  uall: [x:A]. B[x] member: t ∈ T append-finite-nat-seq: f**g finite-nat-seq: finite-nat-seq() nat: ge: i ≥  all: x:A. B[x] decidable: Dec(P) or: P ∨ Q uimplies: supposing a not: ¬A implies:  Q satisfiable_int_formula: satisfiable_int_formula(fmla) exists: x:A. B[x] false: False top: Top and: P ∧ Q prop: int_seg: {i..j-} less_than: a < b less_than': less_than'(a;b) true: True squash: T lelt: i ≤ j < k guard: {T}
Lemmas referenced :  mk-finite-nat-seq_wf nat_properties decidable__le full-omega-unsat intformand_wf intformnot_wf intformle_wf itermConstant_wf itermAdd_wf itermVar_wf int_formula_prop_and_lemma int_formula_prop_not_lemma int_formula_prop_le_lemma int_term_value_constant_lemma int_term_value_add_lemma int_term_value_var_lemma int_formula_prop_wf le_wf top_wf less_than_wf int_seg_wf lelt_wf subtract_wf int_seg_properties itermSubtract_wf intformless_wf int_term_value_subtract_lemma int_formula_prop_less_lemma decidable__lt finite-nat-seq_wf
Rules used in proof :  sqequalSubstitution sqequalTransitivity computationStep sqequalReflexivity isect_memberFormation introduction cut sqequalRule sqequalHypSubstitution productElimination thin extract_by_obid isectElimination dependent_set_memberEquality addEquality setElimination rename because_Cache hypothesis hypothesisEquality dependent_functionElimination natural_numberEquality unionElimination independent_isectElimination approximateComputation independent_functionElimination dependent_pairFormation lambdaEquality int_eqEquality intEquality isect_memberEquality voidElimination voidEquality independent_pairFormation lessCases baseClosed equalityTransitivity equalitySymmetry imageMemberEquality axiomSqEquality lambdaFormation imageElimination applyEquality functionExtensionality axiomEquality

Latex:
\mforall{}[f,g:finite-nat-seq()].    (f**g  \mmember{}  finite-nat-seq())



Date html generated: 2019_06_20-PM-03_03_08
Last ObjectModification: 2018_08_20-PM-09_40_32

Theory : continuity


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