Expression of type ExprTuple

from the theory of proveit.core_expr_types.tuples

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 ExprRange, ExprTuple, Function, Variable, a, b, f, i, j, k, l
from proveit.numbers import Add

# build up the expression from sub-expressions
sub_expr1 = Variable("_a", latex_format = r"{_{-}a}")
expr = ExprTuple([ExprRange(sub_expr1, Function(f, [Add(sub_expr1, a)]), i, j)], [ExprRange(sub_expr1, Function(f, [Add(sub_expr1, b)]), k, l)])

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(\left(f\left(i + a\right), f\left(\left(i + 1\right) + a\right), \ldots, f\left(j + a\right)\right), \left(f\left(k + b\right), f\left(\left(k + 1\right) + b\right), \ldots, f\left(l + b\right)\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	ExprTuple	3
2	ExprTuple	4
3	ExprRange	lambda_map: 5 start_index: 6 end_index: 7
4	ExprRange	lambda_map: 8 start_index: 9 end_index: 10
5	Lambda	parameter: 23 body: 11
6	Variable
7	Variable
8	Lambda	parameter: 23 body: 13
9	Variable
10	Variable
11	Operation	operator: 15 operand: 17
12	ExprTuple	23
13	Operation	operator: 15 operand: 18
14	ExprTuple	17
15	Variable
16	ExprTuple	18
17	Operation	operator: 20 operands: 19
18	Operation	operator: 20 operands: 21
19	ExprTuple	23, 22
20	Literal
21	ExprTuple	23, 24
22	Variable
23	Variable
24	Variable