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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 Exp, Mult, e, i, one, pi, subtract, two
from proveit.physics.quantum.QPE import _delta_b_floor, _two_pow_t
In [2]:
# build up the expression from sub-expressions
expr = Equals(subtract(one, Exp(e, Mult(two, pi, i, subtract(Mult(_delta_b_floor, _two_pow_t), l)))), subtract(one, Exp(e, Mult(two, pi, i, subtract(Mult(_two_pow_t, _delta_b_floor), l)))))
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(1 - \mathsf{e}^{2 \cdot \pi \cdot \mathsf{i} \cdot \left(\left(\delta_{b_{\textit{f}}} \cdot 2^{t}\right) - l\right)}\right) = \left(1 - \mathsf{e}^{2 \cdot \pi \cdot \mathsf{i} \cdot \left(\left(2^{t} \cdot \delta_{b_{\textit{f}}}\right) - l\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: 26
operands: 5
4Operationoperator: 26
operands: 6
5ExprTuple8, 7
6ExprTuple8, 9
7Operationoperator: 34
operand: 12
8Literal
9Operationoperator: 34
operand: 13
10ExprTuple12
11ExprTuple13
12Operationoperator: 39
operands: 14
13Operationoperator: 39
operands: 15
14ExprTuple17, 16
15ExprTuple17, 18
16Operationoperator: 32
operands: 19
17Literal
18Operationoperator: 32
operands: 20
19ExprTuple43, 22, 23, 21
20ExprTuple43, 22, 23, 24
21Operationoperator: 26
operands: 25
22Literal
23Literal
24Operationoperator: 26
operands: 27
25ExprTuple28, 30
26Literal
27ExprTuple29, 30
28Operationoperator: 32
operands: 31
29Operationoperator: 32
operands: 33
30Operationoperator: 34
operand: 38
31ExprTuple37, 36
32Literal
33ExprTuple36, 37
34Literal
35ExprTuple38
36Operationoperator: 39
operands: 40
37Operationoperator: 41
operand: 45
38Variable
39Literal
40ExprTuple43, 44
41Literal
42ExprTuple45
43Literal
44Literal
45Literal