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Expression of type ExprTuple

from the theory of proveit.logic.booleans.conjunction

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 B, Conditional, ExprTuple, Lambda
from proveit.core_expr_types import A_1_to_m, C_1_to_n
from proveit.logic import And, Not
In [2]:
# build up the expression from sub-expressions
expr = ExprTuple(Lambda([A_1_to_m, B, C_1_to_n], Conditional(Not(And(A_1_to_m, B, C_1_to_n)), Not(B))))
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}, B, C_{1}, C_{2}, \ldots, C_{n}\right) \mapsto \left\{\lnot \left(A_{1} \land  A_{2} \land  \ldots \land  A_{m} \land B\land C_{1} \land  C_{2} \land  \ldots \land  C_{n}\right) \textrm{ if } \lnot B\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: 10
body: 2
2Conditionalvalue: 3
condition: 4
3Operationoperator: 6
operand: 8
4Operationoperator: 6
operand: 12
5ExprTuple8
6Literal
7ExprTuple12
8Operationoperator: 9
operands: 10
9Literal
10ExprTuple11, 12, 13
11ExprRangelambda_map: 14
start_index: 17
end_index: 15
12Variable
13ExprRangelambda_map: 16
start_index: 17
end_index: 18
14Lambdaparameter: 24
body: 19
15Variable
16Lambdaparameter: 24
body: 20
17Literal
18Variable
19IndexedVarvariable: 21
index: 24
20IndexedVarvariable: 22
index: 24
21Variable
22Variable
23ExprTuple24
24Variable