class documentation
class AndExpression(BooleanExpression): (source)
Constructor: AndExpression(first, second)
This class represents conjunctions
Method | get |
Undocumented |
Method | _str |
Undocumented |
Inherited from BooleanExpression
:
Method | _set |
:see Expression._set_type() |
Inherited from BinaryExpression
(via BooleanExpression
):
Method | __eq__ |
Undocumented |
Method | __init__ |
Undocumented |
Method | __ne__ |
Undocumented |
Method | __str__ |
Undocumented |
Method | findtype |
:see Expression.findtype() |
Method | visit |
No summary |
Instance Variable | first |
Undocumented |
Instance Variable | second |
Undocumented |
Property | type |
Undocumented |
Inherited from Expression
(via BooleanExpression
, BinaryExpression
):
Class Method | fromstring |
Undocumented |
Method | __and__ |
Undocumented |
Method | __call__ |
Undocumented |
Method | __gt__ |
Undocumented |
Method | __hash__ |
Undocumented |
Method | __lt__ |
Undocumented |
Method | __neg__ |
Undocumented |
Method | __or__ |
Undocumented |
Method | __repr__ |
Undocumented |
Method | applyto |
Undocumented |
Method | constants |
Return a set of individual constants (non-predicates). :return: set of Variable objects |
Method | equiv |
Check for logical equivalence. Pass the expression (self <-> other) to the theorem prover. If the prover says it is valid, then the self and other are equal. |
Method | free |
Return a set of all the free (non-bound) variables. This includes both individual and predicate variables, but not constants. :return: set of Variable objects |
Method | make_ |
Undocumented |
Method | negate |
If this is a negated expression, remove the negation. Otherwise add a negation. |
Method | normalize |
Rename auto-generated unique variables |
Method | predicates |
Return a set of predicates (constants, not variables). :return: set of Variable objects |
Method | replace |
Replace every instance of 'variable' with 'expression' :param variable: Variable The variable to replace :param expression: Expression The expression with which to replace it :param replace_bound: bool Should bound variables be replaced... |
Method | simplify |
No summary |
Method | substitute |
No summary |
Method | typecheck |
Infer and check types. Raise exceptions if necessary. |
Method | variables |
Return a set of all the variables for binding substitution. The variables returned include all free (non-bound) individual variables and any variable starting with '?' or '@'. :return: set of Variable objects... |
Method | visit |
Recursively visit subexpressions. Apply 'function' to each subexpression and pass the result of each function application to the 'combinator' for aggregation. The combinator must have the same signature as the constructor... |
Class Variable | _logic |
Undocumented |
Class Variable | _type |
Undocumented |