Nuprl Lemma : rev-append-property-top-sqle

∀[as,bs,cs:Top].  (rev(as) + bs @ cs ≤ rev(as) + bs @ cs)


Proof




Definitions occuring in Statement :  rev-append: rev(as) + bs,  append: as @ bs,  uall: ∀[x:A]. B[x],  top: Top,  sqle: s ≤ t
Definitions unfolded in proof :  uall: ∀[x:A]. B[x],  member: t ∈ T,  rev-append: rev(as) + bs,  append: as @ bs,  list_accum: list_accum,  list_ind: list_ind,  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,  decidable: Dec(P),  or: P ∨ Q,  nat_plus: ℕ+,  has-value: (a)↓,  subtype_rel: A ⊆r B,  cons: [a / b]
Lemmas referenced :  has-value-implies-dec-isaxiom-2,  is-exception_wf,  has-value_wf_base,  top_wf,  has-value-implies-dec-ispair-2,  fun_exp_unroll_1,  int_term_value_subtract_lemma,  int_formula_prop_not_lemma,  itermSubtract_wf,  intformnot_wf,  subtract_wf,  decidable__le,  bottom-sqle,  strictness-apply,  fun_exp0_lemma,  base_wf,  less_than_wf,  ge_wf,  int_formula_prop_wf,  int_formula_prop_less_lemma,  int_term_value_var_lemma,  int_term_value_constant_lemma,  int_formula_prop_le_lemma,  int_formula_prop_and_lemma,  intformless_wf,  itermVar_wf,  itermConstant_wf,  intformle_wf,  intformand_wf,  satisfiable-full-omega-tt,  nat_properties
Rules used in proof :  sqequalSubstitution,  sqequalTransitivity,  computationStep,  sqequalReflexivity,  isect_memberFormation,  introduction,  cut,  sqleRule,  thin,  fixpointLeast,  lemma_by_obid,  sqequalHypSubstitution,  isectElimination,  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,  axiomSqleEquality,  unionElimination,  dependent_set_memberEquality,  divergentSqle,  callbyvalueCallbyvalue,  callbyvalueReduce,  baseApply,  closedConclusion,  baseClosed,  applyEquality,  because_Cache,  sqleReflexivity,  callbyvalueExceptionCases,  exceptionSqequal

Latex:
\mforall{}[as,bs,cs:Top].    (rev(as)  +  bs  @  cs  \mleq{}  rev(as)  +  bs  @  cs)



Date html generated: 2016_05_14-AM-07_40_06
Last ObjectModification: 2016_01_15-AM-08_36_49

Theory : list_1


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