Quantifiers. More...
Public Member Functions | |
as_ast (self) | |
get_id (self) | |
sort (self) | |
is_forall (self) | |
is_exists (self) | |
is_lambda (self) | |
__getitem__ (self, arg) | |
weight (self) | |
skolem_id (self) | |
qid (self) | |
num_patterns (self) | |
pattern (self, idx) | |
num_no_patterns (self) | |
no_pattern (self, idx) | |
body (self) | |
num_vars (self) | |
var_name (self, idx) | |
var_sort (self, idx) | |
children (self) | |
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__add__ (self, other) | |
__radd__ (self, other) | |
__rmul__ (self, other) | |
__mul__ (self, other) | |
__and__ (self, other) | |
__or__ (self, other) | |
__xor__ (self, other) | |
__invert__ (self) | |
py_value (self) | |
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sort_kind (self) | |
__eq__ (self, other) | |
__hash__ (self) | |
__ne__ (self, other) | |
params (self) | |
decl (self) | |
kind (self) | |
num_args (self) | |
arg (self, idx) | |
from_string (self, s) | |
serialize (self) | |
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__init__ (self, ast, ctx=None) | |
__del__ (self) | |
__deepcopy__ (self, memo={}) | |
__str__ (self) | |
__repr__ (self) | |
__eq__ (self, other) | |
__hash__ (self) | |
__nonzero__ (self) | |
__bool__ (self) | |
sexpr (self) | |
ctx_ref (self) | |
eq (self, other) | |
translate (self, target) | |
__copy__ (self) | |
hash (self) | |
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use_pp (self) | |
Additional Inherited Members | |
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ast = ast | |
ctx = _get_ctx(ctx) | |
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_repr_html_ (self) | |
Quantifiers.
Universally and Existentially quantified formulas.
__getitem__ | ( | self, | |
arg ) |
Return the Z3 expression `self[arg]`.
Definition at line 2107 of file z3py.py.
as_ast | ( | self | ) |
body | ( | self | ) |
Return the expression being quantified. >>> f = Function('f', IntSort(), IntSort()) >>> x = Int('x') >>> q = ForAll(x, f(x) == 0) >>> q.body() f(Var(0)) == 0
Definition at line 2178 of file z3py.py.
Referenced by children().
children | ( | self | ) |
Return a list containing a single element self.body() >>> f = Function('f', IntSort(), IntSort()) >>> x = Int('x') >>> q = ForAll(x, f(x) == 0) >>> q.children() [f(Var(0)) == 0]
Reimplemented from ExprRef.
Definition at line 2233 of file z3py.py.
get_id | ( | self | ) |
Return unique identifier for object. It can be used for hash-tables and maps.
Reimplemented from ExprRef.
Definition at line 2056 of file z3py.py.
is_exists | ( | self | ) |
Return `True` if `self` is an existential quantifier. >>> f = Function('f', IntSort(), IntSort()) >>> x = Int('x') >>> q = ForAll(x, f(x) == 0) >>> q.is_exists() False >>> q = Exists(x, f(x) != 0) >>> q.is_exists() True
Definition at line 2079 of file z3py.py.
is_forall | ( | self | ) |
Return `True` if `self` is a universal quantifier. >>> f = Function('f', IntSort(), IntSort()) >>> x = Int('x') >>> q = ForAll(x, f(x) == 0) >>> q.is_forall() True >>> q = Exists(x, f(x) != 0) >>> q.is_forall() False
Definition at line 2065 of file z3py.py.
is_lambda | ( | self | ) |
Return `True` if `self` is a lambda expression. >>> f = Function('f', IntSort(), IntSort()) >>> x = Int('x') >>> q = Lambda(x, f(x)) >>> q.is_lambda() True >>> q = Exists(x, f(x) != 0) >>> q.is_lambda() False
Definition at line 2093 of file z3py.py.
Referenced by __getitem__(), and sort().
no_pattern | ( | self, | |
idx ) |
Return a no-pattern.
Definition at line 2172 of file z3py.py.
num_no_patterns | ( | self | ) |
Return the number of no-patterns.
Definition at line 2168 of file z3py.py.
Referenced by no_pattern().
num_patterns | ( | self | ) |
Return the number of patterns (i.e., quantifier instantiation hints) in `self`. >>> f = Function('f', IntSort(), IntSort()) >>> g = Function('g', IntSort(), IntSort()) >>> x = Int('x') >>> q = ForAll(x, f(x) != g(x), patterns = [ f(x), g(x) ]) >>> q.num_patterns() 2
Definition at line 2138 of file z3py.py.
Referenced by pattern().
num_vars | ( | self | ) |
Return the number of variables bounded by this quantifier. >>> f = Function('f', IntSort(), IntSort(), IntSort()) >>> x = Int('x') >>> y = Int('y') >>> q = ForAll([x, y], f(x, y) >= x) >>> q.num_vars() 2
Definition at line 2189 of file z3py.py.
Referenced by var_name(), and var_sort().
pattern | ( | self, | |
idx ) |
Return a pattern (i.e., quantifier instantiation hints) in `self`. >>> f = Function('f', IntSort(), IntSort()) >>> g = Function('g', IntSort(), IntSort()) >>> x = Int('x') >>> q = ForAll(x, f(x) != g(x), patterns = [ f(x), g(x) ]) >>> q.num_patterns() 2 >>> q.pattern(0) f(Var(0)) >>> q.pattern(1) g(Var(0))
Definition at line 2150 of file z3py.py.
qid | ( | self | ) |
skolem_id | ( | self | ) |
sort | ( | self | ) |
var_name | ( | self, | |
idx ) |
Return a string representing a name used when displaying the quantifier. >>> f = Function('f', IntSort(), IntSort(), IntSort()) >>> x = Int('x') >>> y = Int('y') >>> q = ForAll([x, y], f(x, y) >= x) >>> q.var_name(0) 'x' >>> q.var_name(1) 'y'
Definition at line 2201 of file z3py.py.
var_sort | ( | self, | |
idx ) |
Return the sort of a bound variable. >>> f = Function('f', IntSort(), RealSort(), IntSort()) >>> x = Int('x') >>> y = Real('y') >>> q = ForAll([x, y], f(x, y) >= x) >>> q.var_sort(0) Int >>> q.var_sort(1) Real
Definition at line 2217 of file z3py.py.
weight | ( | self | ) |
Return the weight annotation of `self`. >>> f = Function('f', IntSort(), IntSort()) >>> x = Int('x') >>> q = ForAll(x, f(x) == 0) >>> q.weight() 1 >>> q = ForAll(x, f(x) == 0, weight=10) >>> q.weight() 10
Definition at line 2114 of file z3py.py.