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Expression of type Less

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, four, frac, greater, one, subtract, two
from proveit.physics.quantum.QPE import _eps, _n, _t
In [2]:
# build up the expression from sub-expressions
sub_expr1 = subtract(Exp(two, subtract(_t, _n)), one)
expr = greater(Add(one, Neg(frac(one, Mult(two, sub_expr1))), Neg(frac(one, Mult(four, Exp(sub_expr1, two))))), subtract(one, _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(1 - \frac{1}{2 \cdot \left(2^{t - n} - 1\right)} - \frac{1}{4 \cdot \left(2^{t - n} - 1\right)^{2}}\right) > \left(1 - \epsilon\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: 37
operands: 5
4Operationoperator: 37
operands: 6
5ExprTuple36, 7
6ExprTuple36, 8, 9
7Operationoperator: 41
operand: 13
8Operationoperator: 41
operand: 14
9Operationoperator: 41
operand: 15
10ExprTuple13
11ExprTuple14
12ExprTuple15
13Literal
14Operationoperator: 17
operands: 16
15Operationoperator: 17
operands: 18
16ExprTuple36, 19
17Literal
18ExprTuple36, 20
19Operationoperator: 22
operands: 21
20Operationoperator: 22
operands: 23
21ExprTuple34, 27
22Literal
23ExprTuple24, 25
24Literal
25Operationoperator: 31
operands: 26
26ExprTuple27, 34
27Operationoperator: 37
operands: 28
28ExprTuple29, 30
29Operationoperator: 31
operands: 32
30Operationoperator: 41
operand: 36
31Literal
32ExprTuple34, 35
33ExprTuple36
34Literal
35Operationoperator: 37
operands: 38
36Literal
37Literal
38ExprTuple39, 40
39Literal
40Operationoperator: 41
operand: 43
41Literal
42ExprTuple43
43Literal