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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, l
from proveit.numbers import Add, Less, frac, one, subtract, zero
from proveit.physics.quantum.QPE import _delta_b, _two_pow_t
In [2]:
# build up the expression from sub-expressions
sub_expr1 = subtract(_delta_b, frac(l, _two_pow_t))
expr = ExprTuple(Less(subtract(zero, one), sub_expr1), Less(sub_expr1, Add(zero, 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(\left(0 - 1\right) < \left(\delta_{b} - \frac{l}{2^{t}}\right), \left(\delta_{b} - \frac{l}{2^{t}}\right) < \left(0 + 1\right)\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, 7
4Literal
5ExprTuple7, 8
6Operationoperator: 11
operands: 9
7Operationoperator: 11
operands: 10
8Operationoperator: 11
operands: 12
9ExprTuple16, 13
10ExprTuple14, 15
11Literal
12ExprTuple16, 22
13Operationoperator: 20
operand: 22
14Operationoperator: 18
operand: 23
15Operationoperator: 20
operand: 24
16Literal
17ExprTuple22
18Literal
19ExprTuple23
20Literal
21ExprTuple24
22Literal
23Variable
24Operationoperator: 25
operands: 26
25Literal
26ExprTuple27, 28
27Variable
28Operationoperator: 29
operands: 30
29Literal
30ExprTuple31, 32
31Literal
32Literal