Common _rel_indexed_alpha of type SubIndexed

from the theory of proveit.physics.quantum.QPE

import proveit
# Automation is not needed when only 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 the special expression
from proveit.physics.quantum.QPE import _rel_indexed_alpha

# check that the built expression is the same as the stored expression
assert _rel_indexed_alpha == stored_expr
assert _rel_indexed_alpha._style_id == stored_expr._style_id
print("Passed sanity check: _rel_indexed_alpha matches stored_expr")

Passed sanity check: _rel_indexed_alpha matches stored_expr

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

\alpha_{b_{\textit{f}} \oplus l}

stored_expr.style_options()

name	description	default	current value	related methods
operation	'infix' or 'function' style formatting	infix	infix

# 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	Operation	operator: 4 operands: 5
4	Literal
5	ExprTuple	6, 7
6	Literal
7	Variable