Expression of type Equals

from the theory of proveit.numbers.numerals.decimals

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 Function, f, i
from proveit.core_expr_types import f_i_to_j
from proveit.logic import Equals
from proveit.numbers import Add, five, four, one, six, three, two

# build up the expression from sub-expressions
expr = Equals([f_i_to_j], [Function(f, [i]), Function(f, [Add(i, one)]), Function(f, [Add(i, two)]), Function(f, [Add(i, three)]), Function(f, [Add(i, four)]), Function(f, [Add(i, five)]), Function(f, [Add(i, six)])])

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(f\left(i\right), f\left(i + 1\right), \ldots, f\left(j\right)\right) = \left(f\left(i\right), f\left(i + 1\right), f\left(i + 2\right), f\left(i + 3\right), f\left(i + 4\right), f\left(i + 5\right), f\left(i + 6\right)\right)

stored_expr.style_options()

name	description	default	current value	related methods
operation	'infix' or 'function' style formatting	infix	infix
wrap_positions	position(s) at which wrapping is to occur; '2 n - 1' is after the nth operand, '2 n' is after the nth operation.	()	()	('with_wrapping_at', 'with_wrap_before_operator', 'with_wrap_after_operator', 'without_wrapping', 'wrap_positions')
justification	if any wrap positions are set, justify to the 'left', 'center', or 'right'	center	center	('with_justification',)
direction	Direction of the relation (normal or reversed)	normal	normal	('with_direction_reversed', 'is_reversed')

# display the expression information
stored_expr.expr_info()

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