Nuprl Lemma : geo-general-position_wf

[g:OrientedPlane]. ∀[xs:Point List].  (geo-general-position(g;xs) ∈ ℙ)


Proof




Definitions occuring in Statement :  geo-general-position: geo-general-position(g;xs) oriented-plane: OrientedPlane geo-point: Point list: List uall: [x:A]. B[x] prop: member: t ∈ T
Definitions unfolded in proof :  so_apply: x[s] squash: T less_than: a < b prop: top: Top false: False exists: x:A. B[x] satisfiable_int_formula: satisfiable_int_formula(fmla) implies:  Q not: ¬A or: P ∨ Q decidable: Dec(P) all: x:A. B[x] and: P ∧ Q lelt: i ≤ j < k oriented-plane: Error :oriented-plane,  int_seg: {i..j-} so_lambda: λ2x.t[x] uimplies: supposing a guard: {T} subtype_rel: A ⊆B geo-general-position: geo-general-position(g;xs) member: t ∈ T uall: [x:A]. B[x]
Lemmas referenced :  list_wf decidable__lt 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_not_lemma int_formula_prop_and_lemma intformless_wf itermVar_wf itermConstant_wf intformle_wf intformnot_wf intformand_wf full-omega-unsat decidable__le int_seg_properties select_wf geo-lsep_wf Error :basic-geo-primitives_wf,  Error :basic-geo-structure_wf,  basic-geometry-_wf Error :oriented-plane_wf,  subtype_rel_transitivity Error :oriented-plane-subtype,  basic-geometry--subtype geo-point_wf length_wf int_seg_wf all_wf
Rules used in proof :  equalitySymmetry equalityTransitivity axiomEquality imageElimination independent_pairFormation voidEquality voidElimination isect_memberEquality intEquality int_eqEquality dependent_pairFormation independent_functionElimination approximateComputation unionElimination dependent_functionElimination productElimination rename setElimination because_Cache lambdaEquality independent_isectElimination instantiate hypothesis applyEquality hypothesisEquality natural_numberEquality thin isectElimination sqequalHypSubstitution extract_by_obid sqequalRule cut introduction isect_memberFormation sqequalReflexivity computationStep sqequalTransitivity sqequalSubstitution

Latex:
\mforall{}[g:OrientedPlane].  \mforall{}[xs:Point  List].    (geo-general-position(g;xs)  \mmember{}  \mBbbP{})



Date html generated: 2017_10_02-PM-06_50_35
Last ObjectModification: 2017_08_06-PM-07_30_32

Theory : euclidean!plane!geometry


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