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Expression of type ExprTuple

from the theory of proveit.logic.booleans

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 A, ExprTuple, Lambda, P, PofA
from proveit.logic import And, Boolean, Forall, Implies, PofFalse, PofTrue
In [2]:
# build up the expression from sub-expressions
expr = ExprTuple(Lambda(P, Implies(Forall(instance_param_or_params = [A], instance_expr = PofA, domain = Boolean), And(PofTrue, PofFalse))))
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(P \mapsto \left(\left[\forall_{A \in \mathbb{B}}~P\left(A\right)\right] \Rightarrow \left(P\left(\top\right) \land P\left(\bot\right)\right)\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
1Lambdaparameter: 22
body: 3
2ExprTuple22
3Operationoperator: 4
operands: 5
4Literal
5ExprTuple6, 7
6Operationoperator: 8
operand: 12
7Operationoperator: 10
operands: 11
8Literal
9ExprTuple12
10Literal
11ExprTuple13, 14
12Lambdaparameter: 26
body: 15
13Operationoperator: 22
operand: 20
14Operationoperator: 22
operand: 21
15Conditionalvalue: 18
condition: 19
16ExprTuple20
17ExprTuple21
18Operationoperator: 22
operand: 26
19Operationoperator: 24
operands: 25
20Literal
21Literal
22Variable
23ExprTuple26
24Literal
25ExprTuple26, 27
26Variable
27Literal