Expression of type ExprTuple

from the theory of proveit.numbers.exponentiation

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, a, b
from proveit.logic import And, InSet
from proveit.numbers import Abs, Exp, LessEq, Real, two

# build up the expression from sub-expressions
sub_expr1 = Abs(a)
expr = ExprTuple(Lambda([a, b], Conditional(LessEq(Exp(sub_expr1, two), Exp(b, two)), And(InSet(a, Real), InSet(b, Real), LessEq(sub_expr1, b)))))

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, b\right) \mapsto \left\{\left|a\right|^{2} \leq b^{2} \textrm{ if } a \in \mathbb{R} ,  b \in \mathbb{R} ,  \left|a\right| \leq b\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	parameters: 2 body: 3
2	ExprTuple	28, 25
3	Conditional	value: 4 condition: 5
4	Operation	operator: 20 operands: 6
5	Operation	operator: 7 operands: 8
6	ExprTuple	9, 10
7	Literal
8	ExprTuple	11, 12, 13
9	Operation	operator: 15 operands: 14
10	Operation	operator: 15 operands: 16
11	Operation	operator: 18 operands: 17
12	Operation	operator: 18 operands: 19
13	Operation	operator: 20 operands: 21
14	ExprTuple	24, 22
15	Literal
16	ExprTuple	25, 22
17	ExprTuple	28, 23
18	Literal
19	ExprTuple	25, 23
20	Literal
21	ExprTuple	24, 25
22	Literal
23	Literal
24	Operation	operator: 26 operand: 28
25	Variable
26	Literal
27	ExprTuple	28
28	Variable