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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_theorem_expr # Load the stored theorem expression as 'stored_expr'
# import the special expression
from proveit.logic.booleans.conjunction import demorgans_law_or_to_and
In [2]:
# check that the built expression is the same as the stored expression
assert demorgans_law_or_to_and.expr == stored_expr
assert demorgans_law_or_to_and.expr._style_id == stored_expr._style_id
print("Passed sanity check: demorgans_law_or_to_and matches stored_expr")
Passed sanity check: demorgans_law_or_to_and matches stored_expr
In [3]:
# Show the LaTeX representation of the expression for convenience if you need it.
print(stored_expr.latex())
\forall_{m \in \mathbb{N}}~\left[\forall_{A_{1}, A_{2}, \ldots, A_{m}~|~\lnot \left((\lnot A_{1}) \lor  (\lnot A_{2}) \lor  \ldots \lor  (\lnot A_{m})\right)}~\left(A_{1} \land  A_{2} \land  \ldots \land  A_{m}\right)\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: 7
operand: 2
1ExprTuple2
2Lambdaparameter: 27
body: 4
3ExprTuple27
4Conditionalvalue: 5
condition: 6
5Operationoperator: 7
operand: 11
6Operationoperator: 9
operands: 10
7Literal
8ExprTuple11
9Literal
10ExprTuple27, 12
11Lambdaparameters: 17
body: 13
12Literal
13Conditionalvalue: 14
condition: 15
14Operationoperator: 16
operands: 17
15Operationoperator: 29
operand: 20
16Literal
17ExprTuple19
18ExprTuple20
19ExprRangelambda_map: 21
start_index: 26
end_index: 27
20Operationoperator: 22
operands: 23
21Lambdaparameter: 34
body: 31
22Literal
23ExprTuple24
24ExprRangelambda_map: 25
start_index: 26
end_index: 27
25Lambdaparameter: 34
body: 28
26Literal
27Variable
28Operationoperator: 29
operand: 31
29Literal
30ExprTuple31
31IndexedVarvariable: 32
index: 34
32Variable
33ExprTuple34
34Variable