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Expression of type ExprTuple

from the theory of proveit.linear_algebra.inner_products

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, i, m, n, v
from proveit.core_expr_types import a_i, b_i, lambda_i
from proveit.linear_algebra import ScalarMult, TensorProd, VecSum
from proveit.numbers import Interval, Min, one
In [2]:
# build up the expression from sub-expressions
expr = ExprTuple(v, VecSum(index_or_indices = [i], summand = ScalarMult(lambda_i, TensorProd(a_i, b_i)), domain = Interval(one, Min(m, 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(v, \sum_{i=1}^{{\rm Min}\left(m, n\right)} \left(\lambda_{i} \cdot \left(a_{i} {\otimes} b_{i}\right)\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
1Variable
2Operationoperator: 3
operand: 5
3Literal
4ExprTuple5
5Lambdaparameter: 30
body: 6
6Conditionalvalue: 7
condition: 8
7Operationoperator: 9
operands: 10
8Operationoperator: 11
operands: 12
9Literal
10ExprTuple13, 14
11Literal
12ExprTuple30, 15
13IndexedVarvariable: 16
index: 30
14Operationoperator: 17
operands: 18
15Operationoperator: 19
operands: 20
16Variable
17Literal
18ExprTuple21, 22
19Literal
20ExprTuple23, 24
21IndexedVarvariable: 25
index: 30
22IndexedVarvariable: 26
index: 30
23Literal
24Operationoperator: 28
operands: 29
25Variable
26Variable
27ExprTuple30
28Literal
29ExprTuple31, 32
30Variable
31Variable
32Variable