Expression of type ExprTuple

from the theory of proveit.physics.quantum.circuits

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, n
from proveit.logic import InSet
from proveit.physics.quantum import m_bit_interval
from proveit.physics.quantum.circuits import register_meas

# build up the expression from sub-expressions
expr = ExprTuple(Lambda(n, Conditional(register_meas, InSet(n, m_bit_interval))))

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(n \mapsto \left\{\begin{array}{c} \Qcircuit@C=1em @R=.7em{
\multiqin{3}{\lvert \psi \rangle} & \meter & \multiqout{3}{\lvert n \rangle_{m}} \\
\ghostqin{\lvert \psi \rangle} & \meter & \ghostqout{\lvert n \rangle_{m}} \\
\ghostqin{\lvert \psi \rangle} & \measure{\begin{array}{c}:\\ \left(m - 3\right) \times \\:\end{array}} \qw & \ghostqout{\lvert n \rangle_{m}} \\
\ghostqin{\lvert \psi \rangle} & \meter & \ghostqout{\lvert n \rangle_{m}}
} \end{array} \textrm{ if } n \in \{0~\ldotp \ldotp~2^{m} - 1\}\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: 57 body: 3
2	ExprTuple	57
3	Conditional	value: 4 condition: 5
4	Operation	operator: 6 operands: 7
5	Operation	operator: 8 operands: 9
6	Literal
7	ExprTuple	10, 11, 12
8	Literal
9	ExprTuple	57, 13
10	ExprTuple	14
11	ExprTuple	15
12	ExprTuple	16
13	Operation	operator: 48 operands: 17
14	ExprRange	lambda_map: 18 start_index: 54 end_index: 58
15	ExprRange	lambda_map: 19 start_index: 54 end_index: 58
16	ExprRange	lambda_map: 20 start_index: 54 end_index: 58
17	ExprTuple	21, 22
18	Lambda	parameter: 53 body: 23
19	Lambda	parameter: 53 body: 24
20	Lambda	parameter: 53 body: 26
21	Literal
22	Operation	operator: 27 operands: 28
23	Operation	operator: 32 operands: 29
24	Operation	operator: 30 operands: 31
25	ExprTuple	53
26	Operation	operator: 32 operands: 33
27	Literal
28	ExprTuple	34, 35
29	NamedExprs	element: 36 targets: 39
30	Literal
31	NamedExprs	basis: 37
32	Literal
33	NamedExprs	element: 38 targets: 39
34	Operation	operator: 40 operands: 41
35	Operation	operator: 42 operand: 54
36	Operation	operator: 44 operands: 45
37	Literal
38	Operation	operator: 46 operands: 47
39	Operation	operator: 48 operands: 49
40	Literal
41	ExprTuple	50, 58
42	Literal
43	ExprTuple	54
44	Literal
45	NamedExprs	state: 51 part: 53
46	Literal
47	NamedExprs	state: 52 part: 53
48	Literal
49	ExprTuple	54, 58
50	Literal
51	Variable
52	Operation	operator: 55 operands: 56
53	Variable
54	Literal
55	Literal
56	ExprTuple	57, 58
57	Variable
58	Variable