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In [1]:
import proveit
# Automation is not needed when only building an expression:
proveit.defaults.automation = False # This will speed things up.
proveit.defaults.inline_pngs = False # Makes files smaller.
%load_expr # Load the stored expression as 'stored_expr'
# import the special expression
from proveit.logic.booleans.quantification import general_forall__Py_not_T__st_Qy
In [2]:
# check that the built expression is the same as the stored expression
assert general_forall__Py_not_T__st_Qy == stored_expr
assert general_forall__Py_not_T__st_Qy._style_id == stored_expr._style_id
print("Passed sanity check: general_forall__Py_not_T__st_Qy matches stored_expr")
Passed sanity check: general_forall__Py_not_T__st_Qy matches stored_expr
In [3]:
# Show the LaTeX representation of the expression for convenience if you need it.
print(stored_expr.latex())
\forall_{y_{1}, y_{2}, \ldots, y_{n}~|~Q\left(y_{1}, y_{2}, \ldots, y_{n}\right)}~\left(P\left(y_{1}, y_{2}, \ldots, y_{n}\right) \neq \top\right)
In [4]:
stored_expr.style_options()
namedescriptiondefaultcurrent valuerelated methods
with_wrappingIf 'True', wrap the Expression after the parametersNoneNone/False('with_wrapping',)
condition_wrappingWrap 'before' or 'after' the condition (or None).NoneNone/False('with_wrap_after_condition', 'with_wrap_before_condition')
wrap_paramsIf 'True', wraps every two parameters AND wraps the Expression after the parametersNoneNone/False('with_params',)
justificationjustify to the 'left', 'center', or 'right' in the array cellscentercenter('with_justification',)
In [5]:
# display the expression information
stored_expr.expr_info()
 core typesub-expressionsexpression
0Operationoperator: 1
operand: 3
1Literal
2ExprTuple3
3Lambdaparameters: 13
body: 4
4Conditionalvalue: 5
condition: 6
5Operationoperator: 7
operands: 8
6Operationoperator: 9
operands: 13
7Literal
8ExprTuple10, 11
9Variable
10Operationoperator: 12
operands: 13
11Literal
12Variable
13ExprTuple14
14ExprRangelambda_map: 15
start_index: 16
end_index: 17
15Lambdaparameter: 21
body: 18
16Literal
17Variable
18IndexedVarvariable: 19
index: 21
19Variable
20ExprTuple21
21Variable