Expression of type Add

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, IndexedVar, Variable, a, b, c
from proveit.numbers import Add, Neg, five, one, seven, subtract

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

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_{1} +  a_{2} +  \ldots +  a_{5} + b\right) + \left(-c - \left(a_{1} +  a_{2} +  \ldots +  a_{7}\right)\right)

stored_expr.style_options()

name	description	default	current value	related methods
operation	'infix' or 'function' style formatting	infix	infix
wrap_positions	position(s) at which wrapping is to occur; '2 n - 1' is after the nth operand, '2 n' is after the nth operation.	()	()	('with_wrapping_at', 'with_wrap_before_operator', 'with_wrap_after_operator', 'without_wrapping', 'wrap_positions')
justification	if any wrap positions are set, justify to the 'left', 'center', or 'right'	center	center	('with_justification',)

# display the expression information
stored_expr.expr_info()

	core type	sub-expressions	expression
0	Operation	operator: 16 operands: 1
1	ExprTuple	2, 3
2	Operation	operator: 16 operands: 4
3	Operation	operator: 16 operands: 5
4	ExprTuple	6, 7
5	ExprTuple	8, 9
6	ExprRange	lambda_map: 19 start_index: 20 end_index: 10
7	Variable
8	Operation	operator: 12 operand: 14
9	Operation	operator: 12 operand: 15
10	Literal
11	ExprTuple	14
12	Literal
13	ExprTuple	15
14	Variable
15	Operation	operator: 16 operands: 17
16	Literal
17	ExprTuple	18
18	ExprRange	lambda_map: 19 start_index: 20 end_index: 21
19	Lambda	parameter: 25 body: 22
20	Literal
21	Literal
22	IndexedVar	variable: 23 index: 25
23	Variable
24	ExprTuple	25
25	Variable