Expression of type Forall

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.core_expr_types import U_1_to_i, V_1_to_j, W_1_to_k, a_1_to_i, b_1_to_j, c_1_to_k
from proveit.linear_algebra import TensorProd
from proveit.logic import Equals, Forall

# build up the expression from sub-expressions
expr = Forall(instance_param_or_params = [a_1_to_i, b_1_to_j, c_1_to_k], instance_expr = Equals(TensorProd(a_1_to_i, b_1_to_j, c_1_to_k), TensorProd(a_1_to_i, TensorProd(b_1_to_j), c_1_to_k)).with_wrapping_at(2), domains = [U_1_to_i, V_1_to_j, W_1_to_k]).with_wrapping()

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())

\begin{array}{l}\forall_{\left(a_{1} \in U_{1}\right), \left(a_{2} \in U_{2}\right), \ldots, \left(a_{i} \in U_{i}\right),\left(b_{1} \in V_{1}\right), \left(b_{2} \in V_{2}\right), \ldots, \left(b_{j} \in V_{j}\right),\left(c_{1} \in W_{1}\right), \left(c_{2} \in W_{2}\right), \ldots, \left(c_{k} \in W_{k}\right)}~\\
\left(\begin{array}{c} \begin{array}{l} \left(a_{1} {\otimes}  a_{2} {\otimes}  \ldots {\otimes}  a_{i}{\otimes} b_{1} {\otimes}  b_{2} {\otimes}  \ldots {\otimes}  b_{j}{\otimes} c_{1} {\otimes}  c_{2} {\otimes}  \ldots {\otimes}  c_{k}\right) =  \\ \left(a_{1} {\otimes}  a_{2} {\otimes}  \ldots {\otimes}  a_{i} {\otimes} \left(b_{1} {\otimes}  b_{2} {\otimes}  \ldots {\otimes}  b_{j}\right){\otimes} c_{1} {\otimes}  c_{2} {\otimes}  \ldots {\otimes}  c_{k}\right) \end{array} \end{array}\right)\end{array}

stored_expr.style_options()

name	description	default	current value	related methods
with_wrapping	If 'True', wrap the Expression after the parameters	None	True	('with_wrapping',)
condition_wrapping	Wrap 'before' or 'after' the condition (or None).	None	None/False	('with_wrap_after_condition', 'with_wrap_before_condition')
wrap_params	If 'True', wraps every two parameters AND wraps the Expression after the parameters	None	None/False	('with_params',)
justification	justify to the 'left', 'center', or 'right' in the array cells	center	center	('with_justification',)

# display the expression information
stored_expr.expr_info()

	core type	sub-expressions	expression
0	Operation	operator: 1 operand: 3
1	Literal
2	ExprTuple	3
3	Lambda	parameters: 16 body: 4
4	Conditional	value: 5 condition: 6
5	Operation	operator: 7 operands: 8
6	Operation	operator: 9 operands: 10
7	Literal
8	ExprTuple	11, 12
9	Literal
10	ExprTuple	13, 14, 15
11	Operation	operator: 29 operands: 16
12	Operation	operator: 29 operands: 17
13	ExprRange	lambda_map: 18 start_index: 44 end_index: 28
14	ExprRange	lambda_map: 19 start_index: 44 end_index: 45
15	ExprRange	lambda_map: 20 start_index: 44 end_index: 32
16	ExprTuple	21, 37, 23
17	ExprTuple	21, 22, 23
18	Lambda	parameter: 54 body: 24
19	Lambda	parameter: 54 body: 25
20	Lambda	parameter: 54 body: 26
21	ExprRange	lambda_map: 27 start_index: 44 end_index: 28
22	Operation	operator: 29 operands: 30
23	ExprRange	lambda_map: 31 start_index: 44 end_index: 32
24	Operation	operator: 35 operands: 33
25	Operation	operator: 35 operands: 34
26	Operation	operator: 35 operands: 36
27	Lambda	parameter: 54 body: 38
28	Variable
29	Literal
30	ExprTuple	37
31	Lambda	parameter: 54 body: 41
32	Variable
33	ExprTuple	38, 39
34	ExprTuple	51, 40
35	Literal
36	ExprTuple	41, 42
37	ExprRange	lambda_map: 43 start_index: 44 end_index: 45
38	IndexedVar	variable: 46 index: 54
39	IndexedVar	variable: 47 index: 54
40	IndexedVar	variable: 48 index: 54
41	IndexedVar	variable: 49 index: 54
42	IndexedVar	variable: 50 index: 54
43	Lambda	parameter: 54 body: 51
44	Literal
45	Variable
46	Variable
47	Variable
48	Variable
49	Variable
50	Variable
51	IndexedVar	variable: 52 index: 54
52	Variable
53	ExprTuple	54
54	Variable