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, j
from proveit.numbers import Add, Interval, Sum, subtract, three

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

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