Expression of type ExprTuple

from the theory of proveit.numbers.multiplication

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
from proveit.core_expr_types import a_1_to_i, c_1_to_k
from proveit.numbers.summation import summation_b1toj_fQ

# build up the expression from sub-expressions
expr = ExprTuple(a_1_to_i, summation_b1toj_fQ, c_1_to_k)

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(a_{1}, a_{2}, \ldots, a_{i}, \sum_{b_{1}, b_{2}, \ldots, b_{j}~|~Q\left(b_{1}, b_{2}, \ldots, b_{j}\right)}~f\left(b_{1}, b_{2}, \ldots, b_{j}\right),c_{1}, c_{2}, \ldots, c_{k}\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, 3
1	ExprRange	lambda_map: 4 start_index: 23 end_index: 5
2	Operation	operator: 6 operand: 11
3	ExprRange	lambda_map: 8 start_index: 23 end_index: 9
4	Lambda	parameter: 28 body: 10
5	Variable
6	Literal
7	ExprTuple	11
8	Lambda	parameter: 28 body: 12
9	Variable
10	IndexedVar	variable: 13 index: 28
11	Lambda	parameters: 20 body: 14
12	IndexedVar	variable: 15 index: 28
13	Variable
14	Conditional	value: 16 condition: 17
15	Variable
16	Operation	operator: 18 operands: 20
17	Operation	operator: 19 operands: 20
18	Variable
19	Variable
20	ExprTuple	21
21	ExprRange	lambda_map: 22 start_index: 23 end_index: 24
22	Lambda	parameter: 28 body: 25
23	Literal
24	Variable
25	IndexedVar	variable: 26 index: 28
26	Variable
27	ExprTuple	28
28	Variable