Nuprl Lemma : sq_stable__fseg
∀[T:Type]. ∀l1,l2:T List.  SqStable(fseg(T;l1;l2))
Proof
Definitions occuring in Statement : 
fseg: fseg(T;L1;L2)
, 
list: T List
, 
sq_stable: SqStable(P)
, 
uall: ∀[x:A]. B[x]
, 
all: ∀x:A. B[x]
, 
universe: Type
Definitions unfolded in proof : 
fseg: fseg(T;L1;L2)
, 
uall: ∀[x:A]. B[x]
, 
all: ∀x:A. B[x]
, 
sq_stable: SqStable(P)
, 
implies: P 
⇒ Q
, 
exists: ∃x:A. B[x]
, 
member: t ∈ T
, 
squash: ↓T
, 
prop: ℙ
, 
uimplies: b supposing a
, 
top: Top
, 
decidable: Dec(P)
, 
or: P ∨ Q
, 
satisfiable_int_formula: satisfiable_int_formula(fmla)
, 
false: False
, 
not: ¬A
, 
sq_type: SQType(T)
, 
guard: {T}
, 
subtype_rel: A ⊆r B
, 
int_seg: {i..j-}
, 
lelt: i ≤ j < k
, 
and: P ∧ Q
, 
ge: i ≥ j 
, 
le: A ≤ B
, 
true: True
, 
so_lambda: λ2x.t[x]
, 
so_apply: x[s]
Lemmas referenced : 
firstn_wf, 
subtract_wf, 
length_wf, 
length_wf_nat, 
equal_wf, 
nat_wf, 
subtype_base_sq, 
int_subtype_base, 
length-append, 
decidable__equal_int, 
satisfiable-full-omega-tt, 
intformnot_wf, 
intformeq_wf, 
itermSubtract_wf, 
itermAdd_wf, 
itermVar_wf, 
int_formula_prop_not_lemma, 
int_formula_prop_eq_lemma, 
int_term_value_subtract_lemma, 
int_term_value_add_lemma, 
int_term_value_var_lemma, 
int_formula_prop_wf, 
append_wf, 
firstn_append, 
subtype_rel_list, 
top_wf, 
non_neg_length, 
decidable__le, 
intformand_wf, 
intformle_wf, 
itermConstant_wf, 
int_formula_prop_and_lemma, 
int_formula_prop_le_lemma, 
int_term_value_constant_lemma, 
decidable__lt, 
intformless_wf, 
int_formula_prop_less_lemma, 
lelt_wf, 
firstn_all, 
list_wf, 
squash_wf, 
exists_wf
Rules used in proof : 
sqequalSubstitution, 
sqequalRule, 
sqequalReflexivity, 
sqequalTransitivity, 
computationStep, 
isect_memberFormation, 
lambdaFormation, 
dependent_pairFormation, 
cut, 
introduction, 
extract_by_obid, 
sqequalHypSubstitution, 
isectElimination, 
thin, 
cumulativity, 
hypothesisEquality, 
hypothesis, 
imageElimination, 
productElimination, 
dependent_set_memberEquality, 
instantiate, 
intEquality, 
independent_isectElimination, 
isect_memberEquality, 
voidElimination, 
voidEquality, 
dependent_functionElimination, 
because_Cache, 
unionElimination, 
natural_numberEquality, 
lambdaEquality, 
int_eqEquality, 
computeAll, 
equalityTransitivity, 
equalitySymmetry, 
independent_functionElimination, 
applyEquality, 
independent_pairFormation, 
addEquality, 
imageMemberEquality, 
baseClosed, 
hyp_replacement, 
Error :applyLambdaEquality, 
setElimination, 
rename, 
universeEquality
Latex:
\mforall{}[T:Type].  \mforall{}l1,l2:T  List.    SqStable(fseg(T;l1;l2))
Date html generated:
2016_10_21-AM-10_33_07
Last ObjectModification:
2016_07_12-AM-05_45_52
Theory : list_1
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