Expression of type ExprTuple

from the theory of proveit.numbers.addition

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, a, b, c, n
from proveit.numbers import Add, Neg, one, subtract, three, two

# build up the expression from sub-expressions
sub_expr1 = Variable("_a", latex_format = r"{_{-}a}")
sub_expr2 = IndexedVar(a, sub_expr1)
expr = ExprTuple(Add(ExprRange(sub_expr1, sub_expr2, three, n), b), subtract(Neg(c), Add(ExprRange(sub_expr1, sub_expr2, one, subtract(n, two)))))

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(a_{3} +  a_{4} +  \ldots +  a_{n} + b, -c - \left(a_{1} +  a_{2} +  \ldots +  a_{n - 2}\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: 20 operands: 3
2	Operation	operator: 20 operands: 4
3	ExprTuple	5, 6
4	ExprTuple	7, 8
5	ExprRange	lambda_map: 16 start_index: 9 end_index: 24
6	Variable
7	Operation	operator: 27 operand: 12
8	Operation	operator: 27 operand: 13
9	Literal
10	ExprTuple	12
11	ExprTuple	13
12	Variable
13	Operation	operator: 20 operands: 14
14	ExprTuple	15
15	ExprRange	lambda_map: 16 start_index: 17 end_index: 18
16	Lambda	parameter: 26 body: 19
17	Literal
18	Operation	operator: 20 operands: 21
19	IndexedVar	variable: 22 index: 26
20	Literal
21	ExprTuple	24, 25
22	Variable
23	ExprTuple	26
24	Variable
25	Operation	operator: 27 operand: 29
26	Variable
27	Literal
28	ExprTuple	29
29	Literal