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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 e, l
from proveit.logic import Equals
from proveit.numbers import Add, Exp, Interval, Mult, Sum, four, frac, one, subtract, two
from proveit.physics.quantum.QPE import _two_pow__t_minus_one
In [2]:
# build up the expression from sub-expressions
sub_expr1 = frac(one, four)
sub_expr2 = frac(one, Exp(e, two))
sub_expr3 = Sum(index_or_indices = [l], summand = frac(one, Exp(l, two)), domain = Interval(Add(e, one), subtract(_two_pow__t_minus_one, one)))
expr = Equals(Mult(sub_expr1, Add(sub_expr3, Add(sub_expr2, sub_expr3))), Mult(sub_expr1, Add(Mult(two, sub_expr3), sub_expr2)))
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(\frac{1}{4} \cdot \left(\left(\sum_{l = e + 1}^{2^{t - 1} - 1} \frac{1}{l^{2}}\right) + \left(\frac{1}{e^{2}} + \left(\sum_{l = e + 1}^{2^{t - 1} - 1} \frac{1}{l^{2}}\right)\right)\right)\right) = \left(\frac{1}{4} \cdot \left(\left(2 \cdot \left(\sum_{l = e + 1}^{2^{t - 1} - 1} \frac{1}{l^{2}}\right)\right) + \frac{1}{e^{2}}\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: 17
operands: 5
4Operationoperator: 17
operands: 6
5ExprTuple8, 7
6ExprTuple8, 9
7Operationoperator: 51
operands: 10
8Operationoperator: 31
operands: 11
9Operationoperator: 51
operands: 12
10ExprTuple20, 13
11ExprTuple57, 14
12ExprTuple15, 19
13Operationoperator: 51
operands: 16
14Literal
15Operationoperator: 17
operands: 18
16ExprTuple19, 20
17Literal
18ExprTuple49, 20
19Operationoperator: 31
operands: 21
20Operationoperator: 22
operand: 25
21ExprTuple57, 24
22Literal
23ExprTuple25
24Operationoperator: 47
operands: 26
25Lambdaparameter: 40
body: 28
26ExprTuple45, 49
27ExprTuple40
28Conditionalvalue: 29
condition: 30
29Operationoperator: 31
operands: 32
30Operationoperator: 33
operands: 34
31Literal
32ExprTuple57, 35
33Literal
34ExprTuple40, 36
35Operationoperator: 47
operands: 37
36Operationoperator: 38
operands: 39
37ExprTuple40, 49
38Literal
39ExprTuple41, 42
40Variable
41Operationoperator: 51
operands: 43
42Operationoperator: 51
operands: 44
43ExprTuple45, 57
44ExprTuple46, 54
45Variable
46Operationoperator: 47
operands: 48
47Literal
48ExprTuple49, 50
49Literal
50Operationoperator: 51
operands: 52
51Literal
52ExprTuple53, 54
53Literal
54Operationoperator: 55
operand: 57
55Literal
56ExprTuple57
57Literal