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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
from proveit.logic import Equals
from proveit.numbers import Add, Exp, Mult, Neg, frac, one, subtract, two
from proveit.physics.quantum.QPE import _two_pow_t
In [2]:
# build up the expression from sub-expressions
sub_expr1 = Mult(frac(one, Exp(two, one)), _two_pow_t)
expr = Equals(Add(subtract(sub_expr1, two), Add(Neg(sub_expr1), one, Neg(e))), subtract(Neg(one), e))
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(\left(\frac{1}{2^{1}} \cdot 2^{t}\right) - 2\right) + \left(-\left(\frac{1}{2^{1}} \cdot 2^{t}\right) + 1 - e\right)\right) = \left(-1 - e\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: 11
operands: 5
4Operationoperator: 11
operands: 6
5ExprTuple7, 8
6ExprTuple9, 16
7Operationoperator: 11
operands: 10
8Operationoperator: 11
operands: 12
9Operationoperator: 19
operand: 35
10ExprTuple21, 14
11Literal
12ExprTuple15, 35, 16
13ExprTuple35
14Operationoperator: 19
operand: 34
15Operationoperator: 19
operand: 21
16Operationoperator: 19
operand: 22
17ExprTuple34
18ExprTuple21
19Literal
20ExprTuple22
21Operationoperator: 23
operands: 24
22Variable
23Literal
24ExprTuple25, 26
25Operationoperator: 27
operands: 28
26Operationoperator: 32
operands: 29
27Literal
28ExprTuple35, 30
29ExprTuple34, 31
30Operationoperator: 32
operands: 33
31Literal
32Literal
33ExprTuple34, 35
34Literal
35Literal