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Expression of type ExprTuple

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 ExprTuple, t
from proveit.numbers import Add, Exp, Mult, Neg, frac, one, subtract, two
In [2]:
# build up the expression from sub-expressions
sub_expr1 = frac(t, two)
sub_expr2 = frac(one, Exp(two, sub_expr1))
expr = ExprTuple(Mult(frac(one, Exp(two, subtract(frac(Add(t, one), two), sub_expr1))), sub_expr2), Mult(Exp(two, Neg(frac(one, two))), 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}{2^{\frac{t + 1}{2} - \frac{t}{2}}} \cdot \frac{1}{2^{\frac{t}{2}}}, 2^{-\frac{1}{2}} \cdot \frac{1}{2^{\frac{t}{2}}}\right)
In [5]:
stored_expr.style_options()
namedescriptiondefaultcurrent valuerelated methods
wrap_positionsposition(s) at which wrapping is to occur; 'n' is after the nth comma.()()('with_wrapping_at',)
justificationif any wrap positions are set, justify to the 'left', 'center', or 'right'leftleft('with_justification',)
In [6]:
# display the expression information
stored_expr.expr_info()
 core typesub-expressionsexpression
0ExprTuple1, 2
1Operationoperator: 4
operands: 3
2Operationoperator: 4
operands: 5
3ExprTuple6, 8
4Literal
5ExprTuple7, 8
6Operationoperator: 32
operands: 9
7Operationoperator: 17
operands: 10
8Operationoperator: 32
operands: 11
9ExprTuple34, 12
10ExprTuple36, 13
11ExprTuple34, 14
12Operationoperator: 17
operands: 15
13Operationoperator: 26
operand: 20
14Operationoperator: 17
operands: 18
15ExprTuple36, 19
16ExprTuple20
17Literal
18ExprTuple36, 29
19Operationoperator: 30
operands: 21
20Operationoperator: 32
operands: 22
21ExprTuple23, 24
22ExprTuple34, 36
23Operationoperator: 32
operands: 25
24Operationoperator: 26
operand: 29
25ExprTuple28, 36
26Literal
27ExprTuple29
28Operationoperator: 30
operands: 31
29Operationoperator: 32
operands: 33
30Literal
31ExprTuple35, 34
32Literal
33ExprTuple35, 36
34Literal
35Variable
36Literal