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Expression of type LessEq

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.numbers import Add, Exp, Mult, Neg, frac, greater_eq, one, subtract, two
from proveit.physics.quantum.QPE import _eps, _n, _t
In [2]:
# build up the expression from sub-expressions
expr = greater_eq(Neg(frac(one, Mult(two, subtract(Exp(two, subtract(_t, _n)), one)))), Neg(frac(one, Mult(two, Add(one, frac(one, Mult(two, _eps)))))))
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 \cdot \left(2^{t - n} - 1\right)}\right) \geq \left(-\frac{1}{2 \cdot \left(1 + \frac{1}{2 \cdot \epsilon}\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)normalreversed('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: 38
operand: 7
4Operationoperator: 38
operand: 8
5ExprTuple7
6ExprTuple8
7Operationoperator: 22
operands: 9
8Operationoperator: 22
operands: 10
9ExprTuple29, 11
10ExprTuple29, 12
11Operationoperator: 30
operands: 13
12Operationoperator: 30
operands: 14
13ExprTuple34, 15
14ExprTuple34, 16
15Operationoperator: 32
operands: 17
16Operationoperator: 32
operands: 18
17ExprTuple29, 19
18ExprTuple20, 21
19Operationoperator: 22
operands: 23
20Operationoperator: 24
operands: 25
21Operationoperator: 38
operand: 29
22Literal
23ExprTuple29, 27
24Literal
25ExprTuple34, 28
26ExprTuple29
27Operationoperator: 30
operands: 31
28Operationoperator: 32
operands: 33
29Literal
30Literal
31ExprTuple34, 35
32Literal
33ExprTuple36, 37
34Literal
35Literal
36Literal
37Operationoperator: 38
operand: 40
38Literal
39ExprTuple40
40Literal