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, y
from proveit.core_expr_types import x_1_to_n
from proveit.numbers import one, two

# build up the expression from sub-expressions
sub_expr1 = Variable("_a", latex_format = r"{_{-}a}")
expr = ExprTuple([x_1_to_n, y], [IndexedVar(x, one), ExprRange(sub_expr1, IndexedVar(x, sub_expr1), two, n), y])

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}, y\right), \left(x_{1},x_{2}, x_{3}, \ldots, x_{n}, y\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, 6
2	ExprTuple	4, 5, 6
3	ExprRange	lambda_map: 8 start_index: 11 end_index: 10
4	IndexedVar	variable: 13 index: 11
5	ExprRange	lambda_map: 8 start_index: 9 end_index: 10
6	Variable
7	ExprTuple	11
8	Lambda	parameter: 15 body: 12
9	Literal
10	Variable
11	Literal
12	IndexedVar	variable: 13 index: 15
13	Variable
14	ExprTuple	15
15	Variable