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Expression of type ExprTuple

from the theory of proveit.linear_algebra.tensors

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 ExprTuple, a, alpha, u, v, w, x, y
from proveit.linear_algebra import ScalarMult, TensorProd
from proveit.numbers import Mult
In [2]:
# build up the expression from sub-expressions
expr = ExprTuple(TensorProd(u, TensorProd(v, ScalarMult(a, w), x, ScalarMult(alpha, y))), ScalarMult(Mult(a, alpha), TensorProd(u, v, w, x, y)))
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(u {\otimes} \left(v {\otimes} \left(a \cdot w\right) {\otimes} x {\otimes} \left(\alpha \cdot y\right)\right), \left(a \cdot \alpha\right) \cdot \left(u {\otimes} v {\otimes} w {\otimes} x {\otimes} y\right)\right)
In [5]:
stored_expr.style_options()
namedescriptiondefaultcurrent valuerelated methods
wrap_positionsposition(s) at which wrapping is to occur; 'n' is after the nth comma.()()('with_wrapping_at',)
justificationif any wrap positions are set, justify to the 'left', 'center', or 'right'leftleft('with_justification',)
In [6]:
# display the expression information
stored_expr.expr_info()
 core typesub-expressionsexpression
0ExprTuple1, 2
1Operationoperator: 11
operands: 3
2Operationoperator: 19
operands: 4
3ExprTuple15, 5
4ExprTuple6, 7
5Operationoperator: 11
operands: 8
6Operationoperator: 9
operands: 10
7Operationoperator: 11
operands: 12
8ExprTuple16, 13, 17, 14
9Literal
10ExprTuple21, 23
11Literal
12ExprTuple15, 16, 22, 17, 24
13Operationoperator: 19
operands: 18
14Operationoperator: 19
operands: 20
15Variable
16Variable
17Variable
18ExprTuple21, 22
19Literal
20ExprTuple23, 24
21Variable
22Variable
23Variable
24Variable