Expression of type Forall

from the theory of proveit.statistics

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 Omega, x
from proveit.logic import Equals, Forall
from proveit.numbers import Sum, one
from proveit.statistics import Prob, SampleSpaces

# build up the expression from sub-expressions
expr = Forall(instance_param_or_params = [Omega], instance_expr = Equals(Sum(index_or_indices = [x], summand = Prob(x), domain = Omega), one), domain = SampleSpaces)

expr:

# 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

# Show the LaTeX representation of the expression for convenience if you need it.
print(stored_expr.latex())

\forall_{\Omega \underset{{\scriptscriptstyle c}}{\in} \textrm{SampleSpaces}}~\left(\left[\sum_{x \in \Omega}~\textrm{Pr}\left(x\right)\right] = 1\right)

stored_expr.style_options()

name	description	default	current value	related methods
with_wrapping	If 'True', wrap the Expression after the parameters	None	None/False	('with_wrapping',)
condition_wrapping	Wrap 'before' or 'after' the condition (or None).	None	None/False	('with_wrap_after_condition', 'with_wrap_before_condition')
wrap_params	If 'True', wraps every two parameters AND wraps the Expression after the parameters	None	None/False	('with_params',)
justification	justify to the 'left', 'center', or 'right' in the array cells	center	center	('with_justification',)

# display the expression information
stored_expr.expr_info()

	core type	sub-expressions	expression
0	Operation	operator: 1 operand: 3
1	Literal
2	ExprTuple	3
3	Lambda	parameter: 26 body: 5
4	ExprTuple	26
5	Conditional	value: 6 condition: 7
6	Operation	operator: 8 operands: 9
7	Operation	operator: 10 operands: 11
8	Literal
9	ExprTuple	12, 13
10	Literal
11	ExprTuple	26, 14
12	Operation	operator: 15 operand: 17
13	Literal
14	Literal
15	Literal
16	ExprTuple	17
17	Lambda	parameter: 25 body: 18
18	Conditional	value: 19 condition: 20
19	Operation	operator: 21 operand: 25
20	Operation	operator: 23 operands: 24
21	Literal
22	ExprTuple	25
23	Literal
24	ExprTuple	25, 26
25	Variable
26	Variable