Nuprl Lemma : from-upto-single
∀[n:ℤ]. ([n, n + 1) ~ [n])
Proof
Definitions occuring in Statement : 
from-upto: [n, m)
, 
cons: [a / b]
, 
nil: []
, 
uall: ∀[x:A]. B[x]
, 
add: n + m
, 
natural_number: $n
, 
int: ℤ
, 
sqequal: s ~ t
Definitions unfolded in proof : 
uall: ∀[x:A]. B[x]
, 
member: t ∈ T
, 
and: P ∧ Q
, 
prop: ℙ
, 
uimplies: b supposing a
, 
so_lambda: λ2x.t[x]
, 
so_apply: x[s]
, 
squash: ↓T
, 
label: ...$L... t
, 
cand: A c∧ B
, 
all: ∀x:A. B[x]
, 
decidable: Dec(P)
, 
or: P ∨ Q
, 
satisfiable_int_formula: satisfiable_int_formula(fmla)
, 
exists: ∃x:A. B[x]
, 
false: False
, 
implies: P 
⇒ Q
, 
not: ¬A
, 
top: Top
, 
true: True
, 
subtype_rel: A ⊆r B
, 
guard: {T}
, 
iff: P 
⇐⇒ Q
, 
rev_implies: P 
⇐ Q
, 
sq_type: SQType(T)
Lemmas referenced : 
subtype_base_sq, 
list_wf, 
le_wf, 
less_than_wf, 
list_subtype_base, 
set_subtype_base, 
int_subtype_base, 
equal_wf, 
squash_wf, 
true_wf, 
from-upto-is-singleton, 
strong-subtype-equal-lists, 
strong-subtype-set3, 
strong-subtype-self, 
from-upto_wf, 
cons_wf, 
decidable__le, 
satisfiable-full-omega-tt, 
intformnot_wf, 
intformle_wf, 
itermVar_wf, 
int_formula_prop_not_lemma, 
int_formula_prop_le_lemma, 
int_term_value_var_lemma, 
int_formula_prop_wf, 
decidable__lt, 
intformless_wf, 
itermAdd_wf, 
itermConstant_wf, 
int_formula_prop_less_lemma, 
int_term_value_add_lemma, 
int_term_value_constant_lemma, 
nil_wf, 
iff_weakening_equal
Rules used in proof : 
sqequalSubstitution, 
sqequalTransitivity, 
computationStep, 
sqequalReflexivity, 
isect_memberFormation, 
introduction, 
cut, 
thin, 
instantiate, 
extract_by_obid, 
sqequalHypSubstitution, 
isectElimination, 
cumulativity, 
setEquality, 
intEquality, 
productEquality, 
hypothesisEquality, 
hypothesis, 
addEquality, 
natural_numberEquality, 
independent_isectElimination, 
sqequalRule, 
lambdaEquality, 
applyEquality, 
imageElimination, 
equalityTransitivity, 
equalitySymmetry, 
universeEquality, 
because_Cache, 
dependent_set_memberEquality, 
dependent_functionElimination, 
unionElimination, 
dependent_pairFormation, 
int_eqEquality, 
isect_memberEquality, 
voidElimination, 
voidEquality, 
computeAll, 
independent_pairFormation, 
imageMemberEquality, 
baseClosed, 
productElimination, 
independent_functionElimination, 
sqequalAxiom
Latex:
\mforall{}[n:\mBbbZ{}].  ([n,  n  +  1)  \msim{}  [n])
Date html generated:
2017_04_17-AM-07_56_26
Last ObjectModification:
2017_02_27-PM-04_27_55
Theory : list_1
Home
Index