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, a, b, fb, fx, x
from proveit.numbers import Add, Interval, Sum, one, subtract

# build up the expression from sub-expressions
sub_expr1 = [x]
expr = ExprTuple(Sum(index_or_indices = sub_expr1, summand = fx, domain = Interval(a, b)), Add(Sum(index_or_indices = sub_expr1, summand = fx, domain = Interval(a, subtract(b, one))), fb))

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), \left(\sum_{x = a}^{b - 1} f\left(x\right)\right) + f\left(b\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: 9 operand: 5
2	Operation	operator: 30 operands: 4
3	ExprTuple	5
4	ExprTuple	6, 7
5	Lambda	parameter: 24 body: 8
6	Operation	operator: 9 operand: 13
7	Operation	operator: 20 operand: 32
8	Conditional	value: 17 condition: 12
9	Literal
10	ExprTuple	13
11	ExprTuple	32
12	Operation	operator: 22 operands: 14
13	Lambda	parameter: 24 body: 15
14	ExprTuple	24, 16
15	Conditional	value: 17 condition: 18
16	Operation	operator: 26 operands: 19
17	Operation	operator: 20 operand: 24
18	Operation	operator: 22 operands: 23
19	ExprTuple	28, 32
20	Variable
21	ExprTuple	24
22	Literal
23	ExprTuple	24, 25
24	Variable
25	Operation	operator: 26 operands: 27
26	Literal
27	ExprTuple	28, 29
28	Variable
29	Operation	operator: 30 operands: 31
30	Literal
31	ExprTuple	32, 33
32	Variable
33	Operation	operator: 34 operand: 36
34	Literal
35	ExprTuple	36
36	Literal