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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, LessEq, Mult, Neg, four, frac, one, subtract, two
from proveit.physics.quantum.QPE import _eps, _n, _t
In [2]:
# build up the expression from sub-expressions
sub_expr1 = Add(one, frac(one, Mult(two, _eps)))
sub_expr2 = Neg(frac(one, Mult(two, sub_expr1)))
expr = LessEq(Add(one, sub_expr2, Neg(frac(one, Mult(four, Exp(sub_expr1, two))))), Add(one, sub_expr2, Neg(frac(one, Mult(four, Exp(subtract(Exp(two, subtract(_t, _n)), one), two))))))
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 - \frac{1}{2 \cdot \left(1 + \frac{1}{2 \cdot \epsilon}\right)} - \frac{1}{4 \cdot \left(1 + \frac{1}{2 \cdot \epsilon}\right)^{2}}\right) \leq \left(1 - \frac{1}{2 \cdot \left(1 + \frac{1}{2 \cdot \epsilon}\right)} - \frac{1}{4 \cdot \left(2^{t - n} - 1\right)^{2}}\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: 47
operands: 5
4Operationoperator: 47
operands: 6
5ExprTuple44, 8, 7
6ExprTuple44, 8, 9
7Operationoperator: 53
operand: 13
8Operationoperator: 53
operand: 14
9Operationoperator: 53
operand: 15
10ExprTuple13
11ExprTuple14
12ExprTuple15
13Operationoperator: 37
operands: 16
14Operationoperator: 37
operands: 17
15Operationoperator: 37
operands: 18
16ExprTuple44, 19
17ExprTuple44, 20
18ExprTuple44, 21
19Operationoperator: 45
operands: 22
20Operationoperator: 45
operands: 23
21Operationoperator: 45
operands: 24
22ExprTuple26, 25
23ExprTuple49, 30
24ExprTuple26, 27
25Operationoperator: 39
operands: 28
26Literal
27Operationoperator: 39
operands: 29
28ExprTuple30, 49
29ExprTuple31, 49
30Operationoperator: 47
operands: 32
31Operationoperator: 47
operands: 33
32ExprTuple44, 34
33ExprTuple35, 36
34Operationoperator: 37
operands: 38
35Operationoperator: 39
operands: 40
36Operationoperator: 53
operand: 44
37Literal
38ExprTuple44, 42
39Literal
40ExprTuple49, 43
41ExprTuple44
42Operationoperator: 45
operands: 46
43Operationoperator: 47
operands: 48
44Literal
45Literal
46ExprTuple49, 50
47Literal
48ExprTuple51, 52
49Literal
50Literal
51Literal
52Operationoperator: 53
operand: 55
53Literal
54ExprTuple55
55Literal