Nuprl Lemma : determinant_wf
∀[r:CRng]. ∀[n:ℕ].  (determinant(n;r) ∈ Matrix(n;n;r) ⟶ |r|)
Proof
Definitions occuring in Statement : 
determinant: determinant(n;r)
, 
matrix: Matrix(n;m;r)
, 
nat: ℕ
, 
uall: ∀[x:A]. B[x]
, 
member: t ∈ T
, 
function: x:A ⟶ B[x]
, 
crng: CRng
, 
rng_car: |r|
Definitions unfolded in proof : 
so_apply: x[s]
, 
assert: ↑b
, 
bnot: ¬bb
, 
less_than': less_than'(a;b)
, 
le: A ≤ B
, 
lelt: i ≤ j < k
, 
uiff: uiff(P;Q)
, 
it: ⋅
, 
unit: Unit
, 
bool: 𝔹
, 
int_seg: {i..j-}
, 
so_lambda: λ2x.t[x]
, 
bfalse: ff
, 
sq_type: SQType(T)
, 
rev_implies: P 
⇐ Q
, 
iff: P 
⇐⇒ Q
, 
guard: {T}
, 
true: True
, 
subtype_rel: A ⊆r B
, 
nequal: a ≠ b ∈ T 
, 
squash: ↓T
, 
or: P ∨ Q
, 
decidable: Dec(P)
, 
rng: Rng
, 
crng: CRng
, 
btrue: tt
, 
ifthenelse: if b then t else f fi 
, 
subtract: n - m
, 
eq_int: (i =z j)
, 
determinant: determinant(n;r)
, 
prop: ℙ
, 
and: P ∧ Q
, 
top: Top
, 
all: ∀x:A. B[x]
, 
exists: ∃x:A. B[x]
, 
satisfiable_int_formula: satisfiable_int_formula(fmla)
, 
not: ¬A
, 
uimplies: b supposing a
, 
ge: i ≥ j 
, 
false: False
, 
implies: P 
⇒ Q
, 
nat: ℕ
, 
member: t ∈ T
, 
uall: ∀[x:A]. B[x]
Lemmas referenced : 
crng_wf, 
nat_wf, 
int_seg_wf, 
matrix-minor_wf, 
rng_minus_wf, 
assert-bnot, 
bool_cases_sqequal, 
eqff_to_assert, 
decidable__lt, 
subtract-add-cancel, 
lelt_wf, 
false_wf, 
matrix-ap_wf, 
eqtt_to_assert, 
bool_wf, 
isEven_wf, 
rng_times_wf, 
rng_car_wf, 
infix_ap_wf, 
rng_sum_wf, 
iff_weakening_equal, 
int_subtype_base, 
equal-wf-base, 
int_formula_prop_eq_lemma, 
intformeq_wf, 
eq_int_eq_false, 
equal_wf, 
bool_subtype_base, 
subtype_base_sq, 
int_term_value_subtract_lemma, 
int_formula_prop_not_lemma, 
itermSubtract_wf, 
intformnot_wf, 
subtract_wf, 
decidable__le, 
matrix_wf, 
rng_one_wf, 
primrec-unroll, 
less_than_wf, 
ge_wf, 
int_formula_prop_wf, 
int_formula_prop_less_lemma, 
int_term_value_var_lemma, 
int_term_value_constant_lemma, 
int_formula_prop_le_lemma, 
int_formula_prop_and_lemma, 
intformless_wf, 
itermVar_wf, 
itermConstant_wf, 
intformle_wf, 
intformand_wf, 
full-omega-unsat, 
nat_properties
Rules used in proof : 
functionExtensionality, 
promote_hyp, 
dependent_set_memberEquality, 
equalityElimination, 
addEquality, 
productElimination, 
universeEquality, 
imageMemberEquality, 
baseClosed, 
imageElimination, 
applyEquality, 
instantiate, 
because_Cache, 
unionElimination, 
equalitySymmetry, 
equalityTransitivity, 
axiomEquality, 
independent_pairFormation, 
sqequalRule, 
voidEquality, 
voidElimination, 
isect_memberEquality, 
dependent_functionElimination, 
intEquality, 
int_eqEquality, 
lambdaEquality, 
dependent_pairFormation, 
independent_functionElimination, 
approximateComputation, 
independent_isectElimination, 
natural_numberEquality, 
lambdaFormation, 
intWeakElimination, 
rename, 
setElimination, 
hypothesis, 
hypothesisEquality, 
thin, 
isectElimination, 
sqequalHypSubstitution, 
extract_by_obid, 
cut, 
introduction, 
isect_memberFormation, 
sqequalReflexivity, 
computationStep, 
sqequalTransitivity, 
sqequalSubstitution
Latex:
\mforall{}[r:CRng].  \mforall{}[n:\mBbbN{}].    (determinant(n;r)  \mmember{}  Matrix(n;n;r)  {}\mrightarrow{}  |r|)
Date html generated:
2018_05_21-PM-09_37_46
Last ObjectModification:
2017_12_12-AM-10_23_10
Theory : matrices
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