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 ExprTuple, fj
from proveit.core_expr_types import f_i_to_j, f_i_to_jm1

# build up the expression from sub-expressions
expr = ExprTuple([f_i_to_jm1, fj], [f_i_to_j])

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