Nuprl Lemma : lg-acyclic-remove

[T:Type]. ∀[g:LabeledGraph(T)].  ∀[i:ℕlg-size(g)]. lg-acyclic(lg-remove(g;i)) supposing lg-acyclic(g)


Proof




Definitions occuring in Statement :  lg-acyclic: lg-acyclic(g) lg-remove: lg-remove(g;n) lg-size: lg-size(g) labeled-graph: LabeledGraph(T) int_seg: {i..j-} uimplies: supposing a uall: [x:A]. B[x] natural_number: $n universe: Type
Lemmas :  subtype_base_sq int_subtype_base lg-size-remove subtract_wf iff_weakening_equal lt_int_wf bool_wf eqtt_to_assert assert_of_lt_int decidable__lt lg-size_wf false_wf less-iff-le condition-implies-le add-associates minus-add minus-one-mul add-swap add-commutes add_functionality_wrt_le le-add-cancel2 lelt_wf nat_wf eqff_to_assert equal_wf bool_cases_sqequal bool_subtype_base assert-bnot less_than_wf decidable__le not-le-2 sq_stable__le zero-add add-zero le-add-cancel lg-connected_wf int_seg_wf lg-remove_wf int_seg_subtype-nat lg-acyclic_wf labeled-graph_wf lg-connected-remove

Latex:
\mforall{}[T:Type].  \mforall{}[g:LabeledGraph(T)].
    \mforall{}[i:\mBbbN{}lg-size(g)].  lg-acyclic(lg-remove(g;i))  supposing  lg-acyclic(g)



Date html generated: 2015_07_22-PM-00_29_13
Last ObjectModification: 2015_02_04-PM-04_50_45

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