Expression of type Equals

from the theory of proveit.physics.quantum.QPE

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.logic import Equals
from proveit.numbers import Add, Mult, Neg, frac, one, two
from proveit.physics.quantum.QPE import _delta_b_round, _two_pow_t

# build up the expression from sub-expressions
sub_expr1 = frac(one, two)
sub_expr2 = Mult(_two_pow_t, _delta_b_round)
expr = Equals(Add(sub_expr2, sub_expr1, Neg(sub_expr1)), sub_expr2)

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(2^{t} \cdot \delta_{b_{\textit{r}}}\right) + \frac{1}{2} - \frac{1}{2}\right) = \left(2^{t} \cdot \delta_{b_{\textit{r}}}\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, 6
3	Operation	operator: 4 operands: 5
4	Literal
5	ExprTuple	6, 14, 7
6	Operation	operator: 8 operands: 9
7	Operation	operator: 10 operand: 14
8	Literal
9	ExprTuple	12, 13
10	Literal
11	ExprTuple	14
12	Operation	operator: 15 operands: 16
13	Operation	operator: 17 operand: 22
14	Operation	operator: 19 operands: 20
15	Literal
16	ExprTuple	24, 21
17	Literal
18	ExprTuple	22
19	Literal
20	ExprTuple	23, 24
21	Literal
22	Literal
23	Literal
24	Literal