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Expression of type Forall

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 l
from proveit.logic import Forall
from proveit.numbers import Exp, LessEq, frac, one, two
from proveit.physics.quantum.QPE import _diff_l_scaled_delta_floor, _neg_domain
In [2]:
# build up the expression from sub-expressions
expr = Forall(instance_param_or_params = [l], instance_expr = LessEq(frac(one, Exp(_diff_l_scaled_delta_floor, two)), frac(one, Exp(l, two))), domain = _neg_domain)
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())
\forall_{l \in \{-2^{t - 1} + 1~\ldotp \ldotp~-\left(e + 1\right)\}}~\left(\frac{1}{\left(l - \left(2^{t} \cdot \delta_{b_{\textit{f}}}\right)\right)^{2}} \leq \frac{1}{l^{2}}\right)
In [5]:
stored_expr.style_options()
namedescriptiondefaultcurrent valuerelated methods
with_wrappingIf 'True', wrap the Expression after the parametersNoneNone/False('with_wrapping',)
condition_wrappingWrap 'before' or 'after' the condition (or None).NoneNone/False('with_wrap_after_condition', 'with_wrap_before_condition')
wrap_paramsIf 'True', wraps every two parameters AND wraps the Expression after the parametersNoneNone/False('with_params',)
justificationjustify to the 'left', 'center', or 'right' in the array cellscentercenter('with_justification',)
In [6]:
# display the expression information
stored_expr.expr_info()
 core typesub-expressionsexpression
0Operationoperator: 1
operand: 3
1Literal
2ExprTuple3
3Lambdaparameter: 34
body: 5
4ExprTuple34
5Conditionalvalue: 6
condition: 7
6Operationoperator: 8
operands: 9
7Operationoperator: 10
operands: 11
8Literal
9ExprTuple12, 13
10Literal
11ExprTuple34, 14
12Operationoperator: 16
operands: 15
13Operationoperator: 16
operands: 17
14Operationoperator: 18
operands: 19
15ExprTuple58, 20
16Literal
17ExprTuple58, 21
18Literal
19ExprTuple22, 23
20Operationoperator: 49
operands: 24
21Operationoperator: 49
operands: 25
22Operationoperator: 44
operands: 26
23Operationoperator: 53
operand: 30
24ExprTuple28, 55
25ExprTuple34, 55
26ExprTuple29, 58
27ExprTuple30
28Operationoperator: 44
operands: 31
29Operationoperator: 53
operand: 36
30Operationoperator: 44
operands: 33
31ExprTuple34, 35
32ExprTuple36
33ExprTuple37, 58
34Variable
35Operationoperator: 53
operand: 40
36Operationoperator: 49
operands: 39
37Variable
38ExprTuple40
39ExprTuple55, 41
40Operationoperator: 42
operands: 43
41Operationoperator: 44
operands: 45
42Literal
43ExprTuple46, 47
44Literal
45ExprTuple56, 48
46Operationoperator: 49
operands: 50
47Operationoperator: 51
operand: 57
48Operationoperator: 53
operand: 58
49Literal
50ExprTuple55, 56
51Literal
52ExprTuple57
53Literal
54ExprTuple58
55Literal
56Literal
57Literal
58Literal