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Expression of type Forall

from the theory of proveit.physics.quantum.algebra

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 A, B
from proveit.linear_algebra import TensorProd
from proveit.logic import Forall, InSet
from proveit.physics.quantum import Qmult, var_ket_psi, var_ket_varphi
In [2]:
# build up the expression from sub-expressions
expr = Forall(instance_param_or_params = [var_ket_psi, var_ket_varphi], instance_expr = InSet(Qmult(var_ket_psi, var_ket_varphi), TensorProd(A, B)), domains = [A, B])
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_{\lvert \psi \rangle \in A, \lvert \varphi \rangle \in B}~\left(\left(\lvert \psi \rangle \thinspace \lvert \varphi \rangle\right) \in \left(A {\otimes} B\right)\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
3Lambdaparameters: 15
body: 4
4Conditionalvalue: 5
condition: 6
5Operationoperator: 19
operands: 7
6Operationoperator: 8
operands: 9
7ExprTuple10, 11
8Literal
9ExprTuple12, 13
10Operationoperator: 14
operands: 15
11Operationoperator: 16
operands: 17
12Operationoperator: 19
operands: 18
13Operationoperator: 19
operands: 20
14Literal
15ExprTuple21, 23
16Literal
17ExprTuple22, 24
18ExprTuple21, 22
19Literal
20ExprTuple23, 24
21Variable
22Variable
23Variable
24Variable