Nuprl Lemma : mklist-add1-cons
∀[n:ℕ]. ∀[f:Top].  (mklist(n + 1;f) ~ [f 0 / mklist(n;λi.(f (i + 1)))])
Proof
Definitions occuring in Statement : 
mklist: mklist(n;f), 
cons: [a / b], 
nat: ℕ, 
uall: ∀[x:A]. B[x], 
top: Top, 
apply: f a, 
lambda: λx.A[x], 
add: n + m, 
natural_number: $n, 
sqequal: s ~ t
Definitions unfolded in proof : 
uall: ∀[x:A]. B[x], 
member: t ∈ T, 
nat: ℕ, 
implies: P ⇒ Q, 
false: False, 
ge: i ≥ j , 
uimplies: b supposing a, 
not: ¬A, 
satisfiable_int_formula: satisfiable_int_formula(fmla), 
exists: ∃x:A. B[x], 
all: ∀x:A. B[x], 
top: Top, 
and: P ∧ Q, 
prop: ℙ, 
mklist: mklist(n;f), 
append: as @ bs, 
so_lambda: so_lambda(x,y,z.t[x; y; z]), 
so_apply: x[s1;s2;s3], 
decidable: Dec(P), 
or: P ∨ Q, 
bool: 𝔹, 
unit: Unit, 
it: ⋅, 
btrue: tt, 
uiff: uiff(P;Q), 
bfalse: ff, 
sq_type: SQType(T), 
guard: {T}, 
bnot: ¬bb, 
ifthenelse: if b then t else f fi , 
assert: ↑b
Lemmas referenced : 
nat_properties, 
full-omega-unsat, 
intformand_wf, 
intformle_wf, 
itermConstant_wf, 
itermVar_wf, 
intformless_wf, 
int_formula_prop_and_lemma, 
int_formula_prop_le_lemma, 
int_term_value_constant_lemma, 
int_term_value_var_lemma, 
int_formula_prop_less_lemma, 
int_formula_prop_wf, 
ge_wf, 
less_than_wf, 
top_wf, 
primrec0_lemma, 
primrec1_lemma, 
list_ind_nil_lemma, 
decidable__le, 
subtract_wf, 
intformnot_wf, 
itermSubtract_wf, 
int_formula_prop_not_lemma, 
int_term_value_subtract_lemma, 
nat_wf, 
subtract-add-cancel, 
primrec-unroll, 
lt_int_wf, 
bool_wf, 
eqtt_to_assert, 
assert_of_lt_int, 
itermAdd_wf, 
int_term_value_add_lemma, 
eqff_to_assert, 
equal_wf, 
bool_cases_sqequal, 
subtype_base_sq, 
bool_subtype_base, 
assert-bnot, 
add-subtract-cancel, 
list_ind_cons_lemma
Rules used in proof : 
sqequalSubstitution, 
sqequalTransitivity, 
computationStep, 
sqequalReflexivity, 
isect_memberFormation, 
introduction, 
cut, 
extract_by_obid, 
sqequalHypSubstitution, 
isectElimination, 
thin, 
hypothesisEquality, 
hypothesis, 
setElimination, 
rename, 
intWeakElimination, 
lambdaFormation, 
natural_numberEquality, 
independent_isectElimination, 
approximateComputation, 
independent_functionElimination, 
dependent_pairFormation, 
lambdaEquality, 
int_eqEquality, 
intEquality, 
dependent_functionElimination, 
isect_memberEquality, 
voidElimination, 
voidEquality, 
sqequalRule, 
independent_pairFormation, 
sqequalAxiom, 
unionElimination, 
because_Cache, 
addEquality, 
equalityElimination, 
equalityTransitivity, 
equalitySymmetry, 
productElimination, 
promote_hyp, 
instantiate, 
cumulativity
Latex:
\mforall{}[n:\mBbbN{}].  \mforall{}[f:Top].    (mklist(n  +  1;f)  \msim{}  [f  0  /  mklist(n;\mlambda{}i.(f  (i  +  1)))])
Date html generated:
2018_05_21-PM-00_36_53
Last ObjectModification:
2018_05_19-AM-06_43_57
Theory : list_1
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