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, beta, gamma, i
from proveit.logic import Equals, Forall, InSet
from proveit.numbers import Add, Interval, Mult, four, one, two

# build up the expression from sub-expressions
sub_expr1 = Mult(gamma, beta)
sub_expr2 = Add(i, one)
sub_expr3 = Interval(two, four)
sub_expr4 = Mult(sub_expr1, i, sub_expr2)
sub_expr5 = InSet(i, sub_expr3)
sub_expr6 = Mult(sub_expr1, Mult(i, sub_expr2))
expr = ExprTuple(Forall(instance_param_or_params = [i], instance_expr = Equals(sub_expr4, sub_expr6), domain = sub_expr3), Equals(Lambda(i, Conditional(sub_expr4, sub_expr5)), Lambda(i, Conditional(sub_expr6, sub_expr5))).with_wrapping_at(2))

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(\forall_{i \in \{2~\ldotp \ldotp~4\}}~\left(\left(\left(\gamma \cdot \beta\right) \cdot i \cdot \left(i + 1\right)\right) = \left(\left(\gamma \cdot \beta\right) \cdot \left(i \cdot \left(i + 1\right)\right)\right)\right), \begin{array}{c} \begin{array}{l} \left[i \mapsto \left\{\left(\gamma \cdot \beta\right) \cdot i \cdot \left(i + 1\right) \textrm{ if } i \in \{2~\ldotp \ldotp~4\}\right..\right] =  \\ \left[i \mapsto \left\{\left(\gamma \cdot \beta\right) \cdot \left(i \cdot \left(i + 1\right)\right) \textrm{ if } i \in \{2~\ldotp \ldotp~4\}\right..\right] \end{array} \end{array}\right)

stored_expr.style_options()

name	description	default	current value	related methods
wrap_positions	position(s) at which wrapping is to occur; 'n' is after the nth comma.	()	()	('with_wrapping_at',)
justification	if any wrap positions are set, justify to the 'left', 'center', or 'right'	left	left	('with_justification',)

# display the expression information
stored_expr.expr_info()

	core type	sub-expressions	expression
0	ExprTuple	1, 2
1	Operation	operator: 3 operand: 6
2	Operation	operator: 15 operands: 5
3	Literal
4	ExprTuple	6
5	ExprTuple	7, 8
6	Lambda	parameter: 38 body: 9
7	Lambda	parameter: 38 body: 10
8	Lambda	parameter: 38 body: 12
9	Conditional	value: 13 condition: 14
10	Conditional	value: 19 condition: 14
11	ExprTuple	38
12	Conditional	value: 20 condition: 14
13	Operation	operator: 15 operands: 16
14	Operation	operator: 17 operands: 18
15	Literal
16	ExprTuple	19, 20
17	Literal
18	ExprTuple	38, 21
19	Operation	operator: 31 operands: 22
20	Operation	operator: 31 operands: 23
21	Operation	operator: 24 operands: 25
22	ExprTuple	26, 38, 35
23	ExprTuple	26, 27
24	Literal
25	ExprTuple	28, 29
26	Operation	operator: 31 operands: 30
27	Operation	operator: 31 operands: 32
28	Literal
29	Literal
30	ExprTuple	33, 34
31	Literal
32	ExprTuple	38, 35
33	Variable
34	Variable
35	Operation	operator: 36 operands: 37
36	Literal
37	ExprTuple	38, 39
38	Variable
39	Literal