logo

Expression of type Equals

from the theory of proveit.physics.quantum.QPE

In [1]:
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 e
from proveit.logic import Equals
from proveit.numbers import Add, Neg, one, subtract, two
from proveit.physics.quantum.QPE import _two_pow__t_minus_one
In [2]:
# build up the expression from sub-expressions
expr = Equals(Add(subtract(_two_pow__t_minus_one, two), Add(Neg(_two_pow__t_minus_one), one, Neg(e))), Neg(Add(e, one)))
expr:
In [3]:
# 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
In [4]:
# Show the LaTeX representation of the expression for convenience if you need it.
print(stored_expr.latex())
\left(\left(2^{t - 1} - 2\right) + \left(-2^{t - 1} + 1 - e\right)\right) = \left(-\left(e + 1\right)\right)
In [5]:
stored_expr.style_options()
namedescriptiondefaultcurrent valuerelated methods
operation'infix' or 'function' style formattinginfixinfix
wrap_positionsposition(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')
justificationif any wrap positions are set, justify to the 'left', 'center', or 'right'centercenter('with_justification',)
directionDirection of the relation (normal or reversed)normalnormal('with_direction_reversed', 'is_reversed')
In [6]:
# display the expression information
stored_expr.expr_info()
 core typesub-expressionsexpression
0Operationoperator: 1
operands: 2
1Literal
2ExprTuple3, 4
3Operationoperator: 25
operands: 5
4Operationoperator: 29
operand: 9
5ExprTuple7, 8
6ExprTuple9
7Operationoperator: 25
operands: 10
8Operationoperator: 25
operands: 11
9Operationoperator: 25
operands: 12
10ExprTuple19, 13
11ExprTuple14, 31, 15
12ExprTuple20, 31
13Operationoperator: 29
operand: 23
14Operationoperator: 29
operand: 19
15Operationoperator: 29
operand: 20
16ExprTuple23
17ExprTuple19
18ExprTuple20
19Operationoperator: 21
operands: 22
20Variable
21Literal
22ExprTuple23, 24
23Literal
24Operationoperator: 25
operands: 26
25Literal
26ExprTuple27, 28
27Literal
28Operationoperator: 29
operand: 31
29Literal
30ExprTuple31
31Literal