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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, two
from proveit.physics.quantum.QPE import _eps, _n
In [2]:
# build up the expression from sub-expressions
expr = Equals(Add(_n, Ceil(Log(two, Add(two, frac(one, Mult(two, _eps)))))), Add(_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(n + \left\lceil \textrm{log}_2\left(2 + \frac{1}{2 \cdot \epsilon}\right)\right\rceil\right) = \left(n + \left\lceil \textrm{log}_2\left(2 + \left(\frac{1}{2} \cdot \epsilon^{-1}\right)\right)\right\rceil\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: 21
operands: 5
4Operationoperator: 21
operands: 6
5ExprTuple8, 7
6ExprTuple8, 9
7Operationoperator: 11
operand: 13
8Literal
9Operationoperator: 11
operand: 14
10ExprTuple13
11Literal
12ExprTuple14
13Operationoperator: 16
operands: 15
14Operationoperator: 16
operands: 17
15ExprTuple36, 18
16Literal
17ExprTuple36, 19
18Operationoperator: 21
operands: 20
19Operationoperator: 21
operands: 22
20ExprTuple36, 23
21Literal
22ExprTuple36, 24
23Operationoperator: 32
operands: 25
24Operationoperator: 30
operands: 26
25ExprTuple41, 27
26ExprTuple28, 29
27Operationoperator: 30
operands: 31
28Operationoperator: 32
operands: 33
29Operationoperator: 34
operands: 35
30Literal
31ExprTuple36, 37
32Literal
33ExprTuple41, 36
34Literal
35ExprTuple37, 38
36Literal
37Literal
38Operationoperator: 39
operand: 41
39Literal
40ExprTuple41
41Literal