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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 Variable, t
from proveit.logic import Equals, Forall
from proveit.numbers import Add, Interval, Neg, one
In [2]:
# build up the expression from sub-expressions
sub_expr1 = Variable("_a", latex_format = r"{_{-}a}")
expr = Forall(instance_param_or_params = [sub_expr1], instance_expr = Equals(Add(Add(sub_expr1, Add(Neg(t), one)), Neg(one), t), sub_expr1), domain = Interval(one, t))
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_{{_{-}a} \in \{1~\ldotp \ldotp~t\}}~\left(\left(\left({_{-}a} + \left(-t + 1\right)\right) - 1 + t\right) = {_{-}a}\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: 21
body: 5
4ExprTuple21
5Conditionalvalue: 6
condition: 7
6Operationoperator: 8
operands: 9
7Operationoperator: 10
operands: 11
8Literal
9ExprTuple12, 21
10Literal
11ExprTuple21, 13
12Operationoperator: 23
operands: 14
13Operationoperator: 15
operands: 16
14ExprTuple17, 18, 29
15Literal
16ExprTuple26, 29
17Operationoperator: 23
operands: 19
18Operationoperator: 27
operand: 26
19ExprTuple21, 22
20ExprTuple26
21Variable
22Operationoperator: 23
operands: 24
23Literal
24ExprTuple25, 26
25Operationoperator: 27
operand: 29
26Literal
27Literal
28ExprTuple29
29Variable