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, Exp, Neg, one, subtract, two
from proveit.physics.quantum.QPE import _t

# build up the expression from sub-expressions
sub_expr1 = subtract(Exp(two, subtract(_t, two)), one)
expr = Equals(Add(sub_expr1, sub_expr1), subtract(Exp(two, Add(Neg(one), _t)), 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(\left(2^{t - 2} - 1\right) + \left(2^{t - 2} - 1\right)\right) = \left(2^{-1 + t} - 2\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: 18 operands: 5
4	Operation	operator: 18 operands: 6
5	ExprTuple	7, 7
6	ExprTuple	8, 22
7	Operation	operator: 18 operands: 9
8	Operation	operator: 13 operands: 10
9	ExprTuple	11, 17
10	ExprTuple	26, 12
11	Operation	operator: 13 operands: 14
12	Operation	operator: 18 operands: 15
13	Literal
14	ExprTuple	26, 16
15	ExprTuple	17, 21
16	Operation	operator: 18 operands: 19
17	Operation	operator: 24 operand: 23
18	Literal
19	ExprTuple	21, 22
20	ExprTuple	23
21	Literal
22	Operation	operator: 24 operand: 26
23	Literal
24	Literal
25	ExprTuple	26
26	Literal