Expression of type ExprTuple

from the theory of proveit.linear_algebra.tensors

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, ExprTuple, Lambda, i, y
from proveit.linear_algebra import ScalarMult
from proveit.logic import InSet
from proveit.numbers import Add, Interval, Mult, four, one, two

# build up the expression from sub-expressions
expr = ExprTuple(Lambda(i, Conditional(ScalarMult(Mult(i, Add(i, one)), y), InSet(i, Interval(two, four)))))

expr:

# 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

# Show the LaTeX representation of the expression for convenience if you need it.
print(stored_expr.latex())

\left(i \mapsto \left\{\left(i \cdot \left(i + 1\right)\right) \cdot y \textrm{ if } i \in \{2~\ldotp \ldotp~4\}\right..\right)

stored_expr.style_options()

no style options

# display the expression information
stored_expr.expr_info()

	core type	sub-expressions	expression
0	ExprTuple	1
1	Lambda	parameter: 22 body: 3
2	ExprTuple	22
3	Conditional	value: 4 condition: 5
4	Operation	operator: 6 operands: 7
5	Operation	operator: 8 operands: 9
6	Literal
7	ExprTuple	10, 11
8	Literal
9	ExprTuple	22, 12
10	Operation	operator: 13 operands: 14
11	Variable
12	Operation	operator: 15 operands: 16
13	Literal
14	ExprTuple	22, 17
15	Literal
16	ExprTuple	18, 19
17	Operation	operator: 20 operands: 21
18	Literal
19	Literal
20	Literal
21	ExprTuple	22, 23
22	Variable
23	Literal