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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.logic import Equals
from proveit.numbers import Add, Ceil, Exp, Log, Mult, Neg, frac, one, subtract, two
from proveit.physics.quantum.QPE import _eps, _n
In [2]:
# build up the expression from sub-expressions
expr = Equals(subtract(Add(_n, Ceil(Log(two, Add(two, frac(one, Mult(two, _eps)))))), _n), Ceil(Log(two, Add(two, Mult(frac(one, two), Exp(_eps, Neg(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(n + \left\lceil \textrm{log}_2\left(2 + \frac{1}{2 \cdot \epsilon}\right)\right\rceil\right) - n\right) = \left\lceil \textrm{log}_2\left(2 + \left(\frac{1}{2} \cdot \epsilon^{-1}\right)\right)\right\rceil
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: 27
operands: 5
4Operationoperator: 16
operand: 9
5ExprTuple7, 8
6ExprTuple9
7Operationoperator: 27
operands: 10
8Operationoperator: 36
operand: 14
9Operationoperator: 21
operands: 12
10ExprTuple14, 13
11ExprTuple14
12ExprTuple42, 15
13Operationoperator: 16
operand: 19
14Literal
15Operationoperator: 27
operands: 18
16Literal
17ExprTuple19
18ExprTuple42, 20
19Operationoperator: 21
operands: 22
20Operationoperator: 40
operands: 23
21Literal
22ExprTuple42, 24
23ExprTuple25, 26
24Operationoperator: 27
operands: 28
25Operationoperator: 34
operands: 29
26Operationoperator: 30
operands: 31
27Literal
28ExprTuple42, 32
29ExprTuple39, 42
30Literal
31ExprTuple43, 33
32Operationoperator: 34
operands: 35
33Operationoperator: 36
operand: 39
34Literal
35ExprTuple39, 38
36Literal
37ExprTuple39
38Operationoperator: 40
operands: 41
39Literal
40Literal
41ExprTuple42, 43
42Literal
43Literal