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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 t
from proveit.logic import Equals
from proveit.numbers import Exp, Mult, Neg, frac, one, sqrt, two
In [2]:
# build up the expression from sub-expressions
sub_expr1 = frac(one, two)
sub_expr2 = Mult(sub_expr1, t)
expr = Equals(Mult(one, Exp(Mult(sqrt(two), Exp(two, sub_expr2)), Neg(one))), Mult(one, Mult(Exp(two, Neg(sub_expr1)), Exp(two, Neg(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(1 \cdot \left(\sqrt{2} \cdot 2^{\frac{1}{2} \cdot t}\right)^{-1}\right) = \left(1 \cdot \left(2^{-\frac{1}{2}} \cdot 2^{-\left(\frac{1}{2} \cdot t\right)}\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: 30
operands: 5
4Operationoperator: 30
operands: 6
5ExprTuple36, 7
6ExprTuple36, 8
7Operationoperator: 24
operands: 9
8Operationoperator: 30
operands: 10
9ExprTuple11, 12
10ExprTuple13, 14
11Operationoperator: 30
operands: 15
12Operationoperator: 27
operand: 36
13Operationoperator: 24
operands: 17
14Operationoperator: 24
operands: 18
15ExprTuple19, 20
16ExprTuple36
17ExprTuple37, 21
18ExprTuple37, 22
19Operationoperator: 24
operands: 23
20Operationoperator: 24
operands: 25
21Operationoperator: 27
operand: 32
22Operationoperator: 27
operand: 29
23ExprTuple37, 32
24Literal
25ExprTuple37, 29
26ExprTuple32
27Literal
28ExprTuple29
29Operationoperator: 30
operands: 31
30Literal
31ExprTuple32, 33
32Operationoperator: 34
operands: 35
33Variable
34Literal
35ExprTuple36, 37
36Literal
37Literal