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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 l
from proveit.logic import Equals
from proveit.numbers import Add, Exp, Mult, Neg, frac, one, pi, two
from proveit.physics.quantum.QPE import _delta_b_floor, _t
In [2]:
# build up the expression from sub-expressions
sub_expr1 = frac(one, two)
sub_expr2 = Exp(pi, Neg(one))
sub_expr3 = Add(Neg(Mult(l, Exp(two, Neg(_t)))), _delta_b_floor)
expr = Equals(Mult(two, pi, sub_expr3, Mult(sub_expr1, sub_expr2)), Mult(two, pi, sub_expr3, sub_expr1, sub_expr2)).with_wrapping_at(2)
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())
\begin{array}{c} \begin{array}{l} \left(2 \cdot \pi \cdot \left(-\left(l \cdot 2^{-t}\right) + \delta_{b_{\textit{f}}}\right) \cdot \left(\frac{1}{2} \cdot \pi^{-1}\right)\right) =  \\ \left(2 \cdot \pi \cdot \left(-\left(l \cdot 2^{-t}\right) + \delta_{b_{\textit{f}}}\right) \cdot \frac{1}{2} \cdot \pi^{-1}\right) \end{array} \end{array}
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.()(2)('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: 27
operands: 5
4Operationoperator: 27
operands: 6
5ExprTuple34, 22, 8, 7
6ExprTuple34, 22, 8, 12, 13
7Operationoperator: 27
operands: 9
8Operationoperator: 10
operands: 11
9ExprTuple12, 13
10Literal
11ExprTuple14, 15
12Operationoperator: 16
operands: 17
13Operationoperator: 32
operands: 18
14Operationoperator: 36
operand: 24
15Operationoperator: 20
operand: 25
16Literal
17ExprTuple29, 34
18ExprTuple22, 23
19ExprTuple24
20Literal
21ExprTuple25
22Literal
23Operationoperator: 36
operand: 29
24Operationoperator: 27
operands: 28
25Literal
26ExprTuple29
27Literal
28ExprTuple30, 31
29Literal
30Variable
31Operationoperator: 32
operands: 33
32Literal
33ExprTuple34, 35
34Literal
35Operationoperator: 36
operand: 38
36Literal
37ExprTuple38
38Literal