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Expression of type ExprTuple

from the theory of proveit.statistics

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 ExprTuple, Qx, Rx, X, fx, x
from proveit.logic import Forall
from proveit.numbers import LessEq
from proveit.statistics import ProbOfAll
In [2]:
# build up the expression from sub-expressions
sub_expr1 = [x]
expr = ExprTuple(Forall(instance_param_or_params = sub_expr1, instance_expr = Rx, domain = X, condition = Qx), LessEq(ProbOfAll(instance_param_or_params = sub_expr1, instance_element = fx, domain = X, condition = Qx), ProbOfAll(instance_param_or_params = sub_expr1, instance_element = fx, domain = X, condition = Rx)).with_wrapping_at(2))
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(\forall_{x \in X~|~Q\left(x\right)}~R\left(x\right), \begin{array}{c} \begin{array}{l} \left[\textrm{Prob}_{x \in X~|~Q\left(x\right)}~f\left(x\right)\right] \leq  \\ \left[\textrm{Prob}_{x \in X~|~R\left(x\right)}~f\left(x\right)\right] \end{array} \end{array}\right)
In [5]:
stored_expr.style_options()
namedescriptiondefaultcurrent valuerelated methods
wrap_positionsposition(s) at which wrapping is to occur; 'n' is after the nth comma.()()('with_wrapping_at',)
justificationif any wrap positions are set, justify to the 'left', 'center', or 'right'leftleft('with_justification',)
In [6]:
# display the expression information
stored_expr.expr_info()
 core typesub-expressionsexpression
0ExprTuple1, 2
1Operationoperator: 3
operand: 7
2Operationoperator: 5
operands: 6
3Literal
4ExprTuple7
5Literal
6ExprTuple8, 9
7Lambdaparameter: 34
body: 10
8Operationoperator: 12
operand: 14
9Operationoperator: 12
operand: 15
10Conditionalvalue: 27
condition: 18
11ExprTuple14
12Literal
13ExprTuple15
14Lambdaparameter: 34
body: 16
15Lambdaparameter: 34
body: 17
16Conditionalvalue: 19
condition: 18
17Conditionalvalue: 19
condition: 20
18Operationoperator: 23
operands: 21
19Operationoperator: 22
operand: 34
20Operationoperator: 23
operands: 24
21ExprTuple26, 25
22Variable
23Literal
24ExprTuple26, 27
25Operationoperator: 28
operand: 34
26Operationoperator: 29
operands: 30
27Operationoperator: 31
operand: 34
28Variable
29Literal
30ExprTuple34, 33
31Variable
32ExprTuple34
33Variable
34Variable