Expression of type Equals

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 a, b, c
from proveit.logic import Equals
from proveit.numbers import Add, Mult, one, six, three, two

# build up the expression from sub-expressions
expr = Equals(Add(a, one, two, c, b, a, b, c, c, three), Add(Mult(two, a), six, Mult(three, c), b, b))

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 + 2 + c + b + a + b + c + c + 3\right) = \left(\left(2 \cdot a\right) + 6 + \left(3 \cdot c\right) + b + b\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',)
direction	Direction of the relation (normal or reversed)	normal	normal	('with_direction_reversed', 'is_reversed')

# display the expression information
stored_expr.expr_info()

	core type	sub-expressions	expression
0	Operation	operator: 1 operands: 2
1	Literal
2	ExprTuple	3, 4
3	Operation	operator: 6 operands: 5
4	Operation	operator: 6 operands: 7
5	ExprTuple	17, 8, 16, 19, 12, 17, 12, 19, 19, 18
6	Literal
7	ExprTuple	9, 10, 11, 12, 12
8	Literal
9	Operation	operator: 14 operands: 13
10	Literal
11	Operation	operator: 14 operands: 15
12	Variable
13	ExprTuple	16, 17
14	Literal
15	ExprTuple	18, 19
16	Literal
17	Variable
18	Literal
19	Variable