Nuprl Lemma : lg-append_assoc

∀[T:Type]. ∀[a,b,c:LabeledGraph(T)].  (lg-append(a;lg-append(b;c)) ~ lg-append(lg-append(a;b);c))


Proof




Definitions occuring in Statement :  lg-append: lg-append(g1;g2),  labeled-graph: LabeledGraph(T),  uall: ∀[x:A]. B[x],  universe: Type,  sqequal: s ~ t
Lemmas :  length_wf_nat,  top_wf,  dep-isect-subtype,  list_wf,  int_seg_wf,  length_wf,  subtype_rel_list,  nat_wf,  subtype_rel_product,  labeled-graph_wf,  map_append_sq,  map-map,  append_assoc_sq,  nat_properties,  less_than_transitivity1,  less_than_irreflexivity,  ge_wf,  less_than_wf,  equal-wf-T-base,  colength_wf_list,  list-cases,  map_nil_lemma,  product_subtype_list,  spread_cons_lemma,  sq_stable__le,  le_antisymmetry_iff,  add_functionality_wrt_le,  add-associates,  add-zero,  zero-add,  le-add-cancel,  decidable__le,  false_wf,  not-le-2,  condition-implies-le,  minus-add,  minus-one-mul,  add-commutes,  le_wf,  subtract_wf,  not-ge-2,  less-iff-le,  minus-minus,  add-swap,  subtype_base_sq,  set_subtype_base,  int_subtype_base,  map_cons_lemma,  equal-wf-base,  list_subtype_base,  length-append,  length-map-sq,  value-type-has-value,  int-value-type,  subtype_top,  has-value_wf_base

Latex:
\mforall{}[T:Type].  \mforall{}[a,b,c:LabeledGraph(T)].    (lg-append(a;lg-append(b;c))  \msim{}  lg-append(lg-append(a;b);c))



Date html generated: 2015_07_22-PM-00_27_46
Last ObjectModification: 2015_01_28-PM-11_34_15

Home Index