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Expression of type ExprTuple

from the theory of proveit.logic.booleans.disjunction

In [1]:
import proveit
# Automation is not needed when 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 Expression classes needed to build the expression
from proveit import Conditional, ExprTuple, Lambda
from proveit.core_expr_types import A_1_to_m
from proveit.logic import And, Or
In [2]:
# build up the expression from sub-expressions
expr = ExprTuple(Lambda([A_1_to_m], Conditional(Or(A_1_to_m), And(A_1_to_m))))
expr:
In [3]:
# check that the built expression is the same as the stored expression
assert expr == stored_expr
assert expr._style_id == stored_expr._style_id
print("Passed sanity check: expr matches stored_expr")
Passed sanity check: expr matches stored_expr
In [4]:
# Show the LaTeX representation of the expression for convenience if you need it.
print(stored_expr.latex())
\left(\left(A_{1}, A_{2}, \ldots, A_{m}\right) \mapsto \left\{A_{1} \lor  A_{2} \lor  \ldots \lor  A_{m} \textrm{ if } A_{1} \land  A_{2} \land  \ldots \land  A_{m}\right..\right)
In [5]:
stored_expr.style_options()
no style options
In [6]:
# display the expression information
stored_expr.expr_info()
 core typesub-expressionsexpression
0ExprTuple1
1Lambdaparameters: 7
body: 2
2Conditionalvalue: 3
condition: 4
3Operationoperator: 5
operands: 7
4Operationoperator: 6
operands: 7
5Literal
6Literal
7ExprTuple8
8ExprRangelambda_map: 9
start_index: 10
end_index: 11
9Lambdaparameter: 15
body: 12
10Literal
11Variable
12IndexedVarvariable: 13
index: 15
13Variable
14ExprTuple15
15Variable