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, f, fi, i, j
from proveit.numbers import Add, one

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

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(f\left(i\right),f\left(i + 1\right), f\left(i + 2\right), \ldots, f\left(j + 1\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: 11 operand: 13
2	ExprRange	lambda_map: 4 start_index: 5 end_index: 6
3	ExprTuple	13
4	Lambda	parameter: 16 body: 7
5	Operation	operator: 9 operands: 8
6	Operation	operator: 9 operands: 10
7	Operation	operator: 11 operand: 16
8	ExprTuple	13, 15
9	Literal
10	ExprTuple	14, 15
11	Variable
12	ExprTuple	16
13	Variable
14	Variable
15	Literal
16	Variable