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: T List, 
uall: ∀[x:A]. B[x], 
prop: ℙ, 
member: t ∈ T
Definitions unfolded in proof : 
so_apply: x[s], 
squash: ↓T, 
less_than: a < b, 
prop: ℙ, 
top: Top, 
false: False, 
exists: ∃x:A. B[x], 
satisfiable_int_formula: satisfiable_int_formula(fmla), 
implies: P ⇒ 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: b supposing a, 
guard: {T}, 
subtype_rel: A ⊆r 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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