Expression of type ExprTuple

from the theory of proveit.physics.quantum.QPE

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 ExprRange, ExprTuple, Lambda, Variable
from proveit.numbers import one, three

# build up the expression from sub-expressions
sub_expr1 = Variable("_b", latex_format = r"{_{-}b}")
sub_expr2 = Variable("_a", latex_format = r"{_{-}a}")
expr = ExprTuple(ExprRange(sub_expr1, Lambda(sub_expr2, [sub_expr1, sub_expr2]), one, three))

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(\left[{_{-}a} \mapsto \left(1, {_{-}a}\right)\right], \left[{_{-}a} \mapsto \left(2, {_{-}a}\right)\right], \ldots, \left[{_{-}a} \mapsto \left(3, {_{-}a}\right)\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	ExprRange	lambda_map: 2 start_index: 3 end_index: 4
2	Lambda	parameter: 9 body: 6
3	Literal
4	Literal
5	ExprTuple	9
6	Lambda	parameter: 10 body: 8
7	ExprTuple	10
8	ExprTuple	9, 10
9	Variable
10	Variable