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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), subtract(Add(_n, Ceil(Log(two, Add(two, Mult(frac(one, two), Exp(_eps, Neg(one))))))), _n))
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(\left(n + \left\lceil \textrm{log}_2\left(2 + \left(\frac{1}{2} \cdot \epsilon^{-1}\right)\right)\right\rceil\right) - n\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: 27
operands: 5
4Operationoperator: 27
operands: 6
5ExprTuple7, 9
6ExprTuple8, 9
7Operationoperator: 27
operands: 10
8Operationoperator: 27
operands: 11
9Operationoperator: 45
operand: 15
10ExprTuple15, 13
11ExprTuple15, 14
12ExprTuple15
13Operationoperator: 17
operand: 19
14Operationoperator: 17
operand: 20
15Literal
16ExprTuple19
17Literal
18ExprTuple20
19Operationoperator: 22
operands: 21
20Operationoperator: 22
operands: 23
21ExprTuple42, 24
22Literal
23ExprTuple42, 25
24Operationoperator: 27
operands: 26
25Operationoperator: 27
operands: 28
26ExprTuple42, 29
27Literal
28ExprTuple42, 30
29Operationoperator: 38
operands: 31
30Operationoperator: 36
operands: 32
31ExprTuple47, 33
32ExprTuple34, 35
33Operationoperator: 36
operands: 37
34Operationoperator: 38
operands: 39
35Operationoperator: 40
operands: 41
36Literal
37ExprTuple42, 43
38Literal
39ExprTuple47, 42
40Literal
41ExprTuple43, 44
42Literal
43Literal
44Operationoperator: 45
operand: 47
45Literal
46ExprTuple47
47Literal