Expression of type ExprTuple

from the theory of proveit.numbers.summation

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, Function, a, b, f, fx, x
from proveit.numbers import Interval, Neg, Sum

# build up the expression from sub-expressions
sub_expr1 = [x]
expr = ExprTuple(Sum(index_or_indices = sub_expr1, summand = fx, domain = Interval(a, b)), Sum(index_or_indices = sub_expr1, summand = Function(f, [Neg(x)]), domain = Interval(Neg(b), Neg(a))))

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())

\left(\sum_{x = a}^{b} f\left(x\right), \sum_{x = -b}^{-a} f\left(-x\right)\right)

stored_expr.style_options()

name	description	default	current value	related methods
wrap_positions	position(s) at which wrapping is to occur; 'n' is after the nth comma.	()	()	('with_wrapping_at',)
justification	if any wrap positions are set, justify to the 'left', 'center', or 'right'	left	left	('with_justification',)

# display the expression information
stored_expr.expr_info()

	core type	sub-expressions	expression
0	ExprTuple	1, 2
1	Operation	operator: 4 operand: 6
2	Operation	operator: 4 operand: 7
3	ExprTuple	6
4	Literal
5	ExprTuple	7
6	Lambda	parameter: 26 body: 8
7	Lambda	parameter: 26 body: 9
8	Conditional	value: 10 condition: 11
9	Conditional	value: 12 condition: 13
10	Operation	operator: 15 operand: 26
11	Operation	operator: 17 operands: 14
12	Operation	operator: 15 operand: 20
13	Operation	operator: 17 operands: 18
14	ExprTuple	26, 19
15	Variable
16	ExprTuple	20
17	Literal
18	ExprTuple	26, 21
19	Operation	operator: 24 operands: 22
20	Operation	operator: 30 operand: 26
21	Operation	operator: 24 operands: 25
22	ExprTuple	33, 32
23	ExprTuple	26
24	Literal
25	ExprTuple	27, 28
26	Variable
27	Operation	operator: 30 operand: 32
28	Operation	operator: 30 operand: 33
29	ExprTuple	32
30	Literal
31	ExprTuple	33
32	Variable
33	Variable