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, IndexedVar, Variable, n, x
from proveit.core_expr_types import x_1_to_n
from proveit.numbers import Add, one, subtract, zero

# build up the expression from sub-expressions
sub_expr1 = Variable("_a", latex_format = r"{_{-}a}")
expr = ExprTuple([x_1_to_n], [ExprRange(sub_expr1, IndexedVar(x, Add(sub_expr1, one)), zero, subtract(n, 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(\left(x_{1}, x_{2}, \ldots, x_{n}\right), \left(x_{0 + 1}, x_{1 + 1}, \ldots, x_{\left(n - 1\right) + 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	ExprTuple	3
2	ExprTuple	4
3	ExprRange	lambda_map: 5 start_index: 23 end_index: 15
4	ExprRange	lambda_map: 6 start_index: 7 end_index: 8
5	Lambda	parameter: 22 body: 9
6	Lambda	parameter: 22 body: 10
7	Literal
8	Operation	operator: 20 operands: 11
9	IndexedVar	variable: 13 index: 22
10	IndexedVar	variable: 13 index: 17
11	ExprTuple	15, 16
12	ExprTuple	22
13	Variable
14	ExprTuple	17
15	Variable
16	Operation	operator: 18 operand: 23
17	Operation	operator: 20 operands: 21
18	Literal
19	ExprTuple	23
20	Literal
21	ExprTuple	22, 23
22	Variable
23	Literal