Nuprl Lemma : last-upto
∀n:ℕ+. (upto(n) ~ upto(n - 1) @ [n - 1])
Proof
Definitions occuring in Statement :
upto: upto(n),
append: as @ bs,
cons: [a / b],
nil: [],
nat_plus: ℕ+,
all: ∀x:A. B[x],
subtract: n - m,
natural_number: $n,
sqequal: s ~ t
Definitions unfolded in proof :
all: ∀x:A. B[x],
uall: ∀[x:A]. B[x],
member: t ∈ T,
subtype_rel: A ⊆r B,
int_seg: {i..j-},
nat_plus: ℕ+,
lelt: i ≤ j < k,
and: P ∧ Q,
decidable: Dec(P),
or: P ∨ Q,
uimplies: b supposing a,
satisfiable_int_formula: satisfiable_int_formula(fmla),
exists: ∃x:A. B[x],
false: False,
implies: P ⇒ Q,
not: ¬A,
top: Top,
prop: ℙ,
sq_type: SQType(T),
guard: {T},
upto: upto(n),
from-upto: [n, m),
bool: 𝔹,
unit: Unit,
it: ⋅,
btrue: tt,
uiff: uiff(P;Q),
ifthenelse: if b then t else f fi ,
bfalse: ff,
bnot: ¬bb,
assert: ↑b,
has-value: (a)↓,
rev_uimplies: rev_uimplies(P;Q)
Lemmas referenced :
upto_decomp,
nat_plus_subtype_nat,
subtract_wf,
nat_plus_properties,
decidable__le,
satisfiable-full-omega-tt,
intformand_wf,
intformnot_wf,
intformle_wf,
itermConstant_wf,
itermSubtract_wf,
itermVar_wf,
intformless_wf,
int_formula_prop_and_lemma,
int_formula_prop_not_lemma,
int_formula_prop_le_lemma,
int_term_value_constant_lemma,
int_term_value_subtract_lemma,
int_term_value_var_lemma,
int_formula_prop_less_lemma,
int_formula_prop_wf,
decidable__lt,
itermAdd_wf,
int_term_value_add_lemma,
lelt_wf,
nat_plus_wf,
subtype_base_sq,
int_subtype_base,
decidable__equal_int,
intformeq_wf,
int_formula_prop_eq_lemma,
from-upto-shift,
lt_int_wf,
bool_wf,
eqtt_to_assert,
assert_of_lt_int,
eqff_to_assert,
equal_wf,
bool_cases_sqequal,
bool_subtype_base,
assert-bnot,
less_than_wf,
zero-add,
value-type-has-value,
int-value-type,
from-upto-is-nil
Rules used in proof :
sqequalSubstitution,
sqequalTransitivity,
computationStep,
sqequalReflexivity,
lambdaFormation,
cut,
introduction,
extract_by_obid,
sqequalHypSubstitution,
isectElimination,
thin,
hypothesisEquality,
applyEquality,
hypothesis,
sqequalRule,
dependent_set_memberEquality,
setElimination,
rename,
natural_numberEquality,
independent_pairFormation,
dependent_functionElimination,
unionElimination,
independent_isectElimination,
dependent_pairFormation,
lambdaEquality,
int_eqEquality,
intEquality,
isect_memberEquality,
voidElimination,
voidEquality,
computeAll,
because_Cache,
addEquality,
instantiate,
cumulativity,
equalityTransitivity,
equalitySymmetry,
independent_functionElimination,
equalityElimination,
productElimination,
promote_hyp,
callbyvalueReduce
Latex:
\mforall{}n:\mBbbN{}\msupplus{}. (upto(n) \msim{} upto(n - 1) @ [n - 1])
Date html generated:
2017_04_17-AM-07_57_49
Last ObjectModification:
2017_02_27-PM-04_29_13
Theory : list_1
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