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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 k, m
from proveit.logic import Equals
from proveit.numbers import Exp, Mod, Mult, Neg, e, frac, i, pi, two
from proveit.physics.quantum.QPE import _two_pow_t
In [2]:
# build up the expression from sub-expressions
expr = Equals(Exp(e, Neg(Mult(frac(Mult(two, pi, i, Mod(m, _two_pow_t)), _two_pow_t), k))), Exp(e, Neg(Mult(frac(Mult(two, pi, i, m), _two_pow_t), k))))
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())
\mathsf{e}^{-\left(\frac{2 \cdot \pi \cdot \mathsf{i} \cdot \left(m ~\textup{mod}~ 2^{t}\right)}{2^{t}} \cdot k\right)} = \mathsf{e}^{-\left(\frac{2 \cdot \pi \cdot \mathsf{i} \cdot m}{2^{t}} \cdot k\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: 35
operands: 5
4Operationoperator: 35
operands: 6
5ExprTuple8, 7
6ExprTuple8, 9
7Operationoperator: 11
operand: 13
8Literal
9Operationoperator: 11
operand: 14
10ExprTuple13
11Literal
12ExprTuple14
13Operationoperator: 26
operands: 15
14Operationoperator: 26
operands: 16
15ExprTuple17, 19
16ExprTuple18, 19
17Operationoperator: 21
operands: 20
18Operationoperator: 21
operands: 22
19Variable
20ExprTuple23, 34
21Literal
22ExprTuple24, 34
23Operationoperator: 26
operands: 25
24Operationoperator: 26
operands: 27
25ExprTuple37, 29, 30, 28
26Literal
27ExprTuple37, 29, 30, 33
28Operationoperator: 31
operands: 32
29Literal
30Literal
31Literal
32ExprTuple33, 34
33Variable
34Operationoperator: 35
operands: 36
35Literal
36ExprTuple37, 38
37Literal
38Literal