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 ExprTuple, IndexedVar, a, b, c, n
from proveit.numbers import Neg, one, subtract, two

# build up the expression from sub-expressions
expr = ExprTuple(IndexedVar(a, subtract(n, one)), IndexedVar(a, n), b, Neg(c), Neg(IndexedVar(a, one)), Neg(IndexedVar(a, 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_{n - 1}, a_{n}, b, -c, -a_{1}, -a_{2}\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, 3, 4, 5, 6
1	IndexedVar	variable: 18 index: 12
2	IndexedVar	variable: 18 index: 20
3	Variable
4	Operation	operator: 23 operand: 13
5	Operation	operator: 23 operand: 14
6	Operation	operator: 23 operand: 15
7	ExprTuple	12
8	ExprTuple	20
9	ExprTuple	13
10	ExprTuple	14
11	ExprTuple	15
12	Operation	operator: 16 operands: 17
13	Variable
14	IndexedVar	variable: 18 index: 25
15	IndexedVar	variable: 18 index: 22
16	Literal
17	ExprTuple	20, 21
18	Variable
19	ExprTuple	22
20	Variable
21	Operation	operator: 23 operand: 25
22	Literal
23	Literal
24	ExprTuple	25
25	Literal