Nuprl Lemma : append-finite-nat-seq_wf
∀[f,g:finite-nat-seq()].  (f**g ∈ finite-nat-seq())
Proof
Definitions occuring in Statement : 
append-finite-nat-seq: f**g, 
finite-nat-seq: finite-nat-seq(), 
uall: ∀[x:A]. B[x], 
member: t ∈ T
Definitions unfolded in proof : 
uall: ∀[x:A]. B[x], 
member: t ∈ T, 
append-finite-nat-seq: f**g, 
finite-nat-seq: finite-nat-seq(), 
nat: ℕ, 
ge: i ≥ j , 
all: ∀x:A. B[x], 
decidable: Dec(P), 
or: P ∨ Q, 
uimplies: b supposing a, 
not: ¬A, 
implies: P ⇒ Q, 
satisfiable_int_formula: satisfiable_int_formula(fmla), 
exists: ∃x:A. B[x], 
false: False, 
top: Top, 
and: P ∧ Q, 
prop: ℙ, 
int_seg: {i..j-}, 
less_than: a < b, 
less_than': less_than'(a;b), 
true: True, 
squash: ↓T, 
lelt: i ≤ j < k, 
guard: {T}
Lemmas referenced : 
mk-finite-nat-seq_wf, 
nat_properties, 
decidable__le, 
full-omega-unsat, 
intformand_wf, 
intformnot_wf, 
intformle_wf, 
itermConstant_wf, 
itermAdd_wf, 
itermVar_wf, 
int_formula_prop_and_lemma, 
int_formula_prop_not_lemma, 
int_formula_prop_le_lemma, 
int_term_value_constant_lemma, 
int_term_value_add_lemma, 
int_term_value_var_lemma, 
int_formula_prop_wf, 
le_wf, 
top_wf, 
less_than_wf, 
int_seg_wf, 
lelt_wf, 
subtract_wf, 
int_seg_properties, 
itermSubtract_wf, 
intformless_wf, 
int_term_value_subtract_lemma, 
int_formula_prop_less_lemma, 
decidable__lt, 
finite-nat-seq_wf
Rules used in proof : 
sqequalSubstitution, 
sqequalTransitivity, 
computationStep, 
sqequalReflexivity, 
isect_memberFormation, 
introduction, 
cut, 
sqequalRule, 
sqequalHypSubstitution, 
productElimination, 
thin, 
extract_by_obid, 
isectElimination, 
dependent_set_memberEquality, 
addEquality, 
setElimination, 
rename, 
because_Cache, 
hypothesis, 
hypothesisEquality, 
dependent_functionElimination, 
natural_numberEquality, 
unionElimination, 
independent_isectElimination, 
approximateComputation, 
independent_functionElimination, 
dependent_pairFormation, 
lambdaEquality, 
int_eqEquality, 
intEquality, 
isect_memberEquality, 
voidElimination, 
voidEquality, 
independent_pairFormation, 
lessCases, 
baseClosed, 
equalityTransitivity, 
equalitySymmetry, 
imageMemberEquality, 
axiomSqEquality, 
lambdaFormation, 
imageElimination, 
applyEquality, 
functionExtensionality, 
axiomEquality
Latex:
\mforall{}[f,g:finite-nat-seq()].    (f**g  \mmember{}  finite-nat-seq())
Date html generated:
2019_06_20-PM-03_03_08
Last ObjectModification:
2018_08_20-PM-09_40_32
Theory : continuity
Home
Index