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Expression of type Conditional

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 Conditional, M, m, n
from proveit.linear_algebra import LinMap, MatrixSpace
from proveit.logic import CartExp, InSet
from proveit.numbers import Complex
from proveit.physics.quantum import Qmult
In [2]:
# build up the expression from sub-expressions
expr = Conditional(InSet(Qmult(M), LinMap(CartExp(Complex, n), CartExp(Complex, m))), InSet(M, MatrixSpace(field = Complex, rows = m, columns = n)))
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\{\left[M\right] \in \mathcal{L}\left(\mathbb{C}^{n}, \mathbb{C}^{m}\right) \textrm{ if } M \in \mathbb{C}^{m \times n}\right..
In [5]:
stored_expr.style_options()
namedescriptiondefaultcurrent valuerelated methods
condition_delimiter'comma' or 'and'commacomma('with_comma_delimiter', 'with_conjunction_delimiter')
In [6]:
# display the expression information
stored_expr.expr_info()
 core typesub-expressionsexpression
0Conditionalvalue: 1
condition: 2
1Operationoperator: 4
operands: 3
2Operationoperator: 4
operands: 5
3ExprTuple6, 7
4Literal
5ExprTuple15, 8
6Operationoperator: 9
operand: 15
7Operationoperator: 11
operands: 12
8Operationoperator: 13
operands: 14
9Literal
10ExprTuple15
11Literal
12ExprTuple16, 17
13Literal
14NamedExprsfield: 22
rows: 23
columns: 21
15Variable
16Operationoperator: 19
operands: 18
17Operationoperator: 19
operands: 20
18ExprTuple22, 21
19Literal
20ExprTuple22, 23
21Variable
22Literal
23Variable