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, k
from proveit.numbers import Interval, Sum, eight, nine, seven, subtract, two

# build up the expression from sub-expressions
sub_expr1 = [k]
sub_expr2 = subtract(k, two)
expr = ExprTuple(Sum(index_or_indices = sub_expr1, summand = sub_expr2, domain = Interval(a, seven)), Sum(index_or_indices = sub_expr1, summand = sub_expr2, domain = Interval(eight, nine)))

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_{k = a}^{7} \left(k - 2\right), \sum_{k = 8}^{9} \left(k - 2\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: 21 body: 8
7	Lambda	parameter: 21 body: 10
8	Conditional	value: 12 condition: 11
9	ExprTuple	21
10	Conditional	value: 12 condition: 13
11	Operation	operator: 17 operands: 14
12	Operation	operator: 15 operands: 16
13	Operation	operator: 17 operands: 18
14	ExprTuple	21, 19
15	Literal
16	ExprTuple	21, 20
17	Literal
18	ExprTuple	21, 22
19	Operation	operator: 26 operands: 23
20	Operation	operator: 24 operand: 30
21	Variable
22	Operation	operator: 26 operands: 27
23	ExprTuple	28, 29
24	Literal
25	ExprTuple	30
26	Literal
27	ExprTuple	31, 32
28	Variable
29	Literal
30	Literal
31	Literal
32	Literal