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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, fi, i, z
from proveit.linear_algebra import TensorProd, VecSum
from proveit.logic import CartExp
from proveit.numbers import Interval, Real, four, three, two
In [2]:
# build up the expression from sub-expressions
sub_expr1 = CartExp(Real, three)
expr = ExprTuple(TensorProd(z, VecSum(index_or_indices = [i], summand = fi, domain = Interval(two, four))), TensorProd(sub_expr1, sub_expr1))
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(z {\otimes} \left(\sum_{i=2}^{4} f\left(i\right)\right), \mathbb{R}^{3} {\otimes} \mathbb{R}^{3}\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: 4
operands: 3
2Operationoperator: 4
operands: 5
3ExprTuple6, 7
4Literal
5ExprTuple8, 8
6Variable
7Operationoperator: 9
operand: 13
8Operationoperator: 11
operands: 12
9Literal
10ExprTuple13
11Literal
12ExprTuple14, 15
13Lambdaparameter: 23
body: 16
14Literal
15Literal
16Conditionalvalue: 17
condition: 18
17Operationoperator: 19
operand: 23
18Operationoperator: 21
operands: 22
19Variable
20ExprTuple23
21Literal
22ExprTuple23, 24
23Variable
24Operationoperator: 25
operands: 26
25Literal
26ExprTuple27, 28
27Literal
28Literal