Nuprl Lemma : bag-subtype-list

T:Type. (bag(T) ⊆(Top List))


Proof




Definitions occuring in Statement :  bag: bag(T) list: List subtype_rel: A ⊆B top: Top all: x:A. B[x] universe: Type
Definitions unfolded in proof :  all: x:A. B[x] subtype_rel: A ⊆B member: t ∈ T uall: [x:A]. B[x] bag: bag(T) quotient: x,y:A//B[x; y] and: P ∧ Q implies:  Q uimplies: supposing a prop: so_lambda: λ2x.t[x] top: Top so_apply: x[s] ge: i ≥  le: A ≤ B satisfiable_int_formula: satisfiable_int_formula(fmla) exists: x:A. B[x] false: False not: ¬A squash: T decidable: Dec(P) or: P ∨ Q uiff: uiff(P;Q) true: True
Lemmas referenced :  bag_wf list_wf top_wf permutation-length permutation_wf equal_wf equal-wf-base list_induction all_wf length_wf subtype_rel_list equal-wf-base-T length_of_nil_lemma nil_wf length_of_cons_lemma non_neg_length satisfiable-full-omega-tt intformand_wf intformle_wf itermConstant_wf itermVar_wf intformeq_wf itermAdd_wf int_formula_prop_and_lemma int_formula_prop_le_lemma int_term_value_constant_lemma int_term_value_var_lemma int_formula_prop_eq_lemma int_term_value_add_lemma int_formula_prop_wf cons_wf equal-wf-T-base squash_wf true_wf decidable__equal_int add-is-int-iff intformnot_wf int_formula_prop_not_lemma false_wf
Rules used in proof :  sqequalSubstitution sqequalTransitivity computationStep sqequalReflexivity lambdaFormation lambdaEquality cut introduction extract_by_obid sqequalHypSubstitution isectElimination thin cumulativity hypothesisEquality hypothesis universeEquality pointwiseFunctionalityForEquality sqequalRule pertypeElimination productElimination equalityTransitivity equalitySymmetry because_Cache rename independent_isectElimination dependent_functionElimination independent_functionElimination productEquality functionEquality intEquality applyEquality isect_memberEquality voidElimination voidEquality baseClosed natural_numberEquality dependent_pairFormation int_eqEquality independent_pairFormation computeAll addEquality imageElimination unionElimination pointwiseFunctionality promote_hyp baseApply closedConclusion imageMemberEquality

Latex:
\mforall{}T:Type.  (bag(T)  \msubseteq{}r  (Top  List))



Date html generated: 2017_10_01-AM-08_44_52
Last ObjectModification: 2017_07_26-PM-04_30_23

Theory : bags


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