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Expression of type And

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.logic import And
from proveit.numbers import Floor, LessEq, Mult, zero
from proveit.physics.quantum.QPE import _phase, _two_pow_t, _two_pow_t__minus_one
In [2]:
# build up the expression from sub-expressions
sub_expr1 = Floor(Mult(_two_pow_t, _phase))
expr = And(LessEq(zero, sub_expr1), LessEq(sub_expr1, _two_pow_t__minus_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(0 \leq \left\lfloor 2^{t} \cdot \varphi\right\rfloor\right) \land \left(\left\lfloor 2^{t} \cdot \varphi\right\rfloor \leq \left(2^{t} - 1\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',)
as_total_orderingWhen 'True', style the conjunction as a total ordering (e.g. x < y < z from (x < y) and (y < z))NoneNone/False('with_total_ordering_style',)
In [6]:
# display the expression information
stored_expr.expr_info()
 core typesub-expressionsexpression
0Operationoperator: 1
operands: 2
1Literal
2ExprTuple3, 4
3Operationoperator: 6
operands: 5
4Operationoperator: 6
operands: 7
5ExprTuple8, 9
6Literal
7ExprTuple9, 10
8Literal
9Operationoperator: 11
operand: 15
10Operationoperator: 13
operands: 14
11Literal
12ExprTuple15
13Literal
14ExprTuple21, 16
15Operationoperator: 17
operands: 18
16Operationoperator: 19
operand: 23
17Literal
18ExprTuple21, 22
19Literal
20ExprTuple23
21Operationoperator: 24
operands: 25
22Literal
23Literal
24Literal
25ExprTuple26, 27
26Literal
27Literal