Expression of type ExprTuple

from the theory of proveit.numbers.division

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, x, y, z
from proveit.logic import And, Equals, InSet, NotEquals
from proveit.numbers import Complex, frac, subtract, zero

# build up the expression from sub-expressions
expr = ExprTuple(Lambda([x, y, z], Conditional(Equals(frac(subtract(x, y), z), subtract(frac(x, z), frac(y, z))), And(InSet(x, Complex), InSet(y, Complex), InSet(z, Complex), NotEquals(z, zero)))))

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(x, y, z\right) \mapsto \left\{\frac{x - y}{z} = \left(\frac{x}{z} - \frac{y}{z}\right) \textrm{ if } x \in \mathbb{C} ,  y \in \mathbb{C} ,  z \in \mathbb{C} ,  z \neq 0\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	34, 40, 41
3	Conditional	value: 4 condition: 5
4	Operation	operator: 6 operands: 7
5	Operation	operator: 8 operands: 9
6	Literal
7	ExprTuple	10, 11
8	Literal
9	ExprTuple	12, 13, 14, 15
10	Operation	operator: 38 operands: 16
11	Operation	operator: 29 operands: 17
12	Operation	operator: 20 operands: 18
13	Operation	operator: 20 operands: 19
14	Operation	operator: 20 operands: 21
15	Operation	operator: 22 operands: 23
16	ExprTuple	24, 41
17	ExprTuple	25, 26
18	ExprTuple	34, 27
19	ExprTuple	40, 27
20	Literal
21	ExprTuple	41, 27
22	Literal
23	ExprTuple	41, 28
24	Operation	operator: 29 operands: 30
25	Operation	operator: 38 operands: 31
26	Operation	operator: 36 operand: 35
27	Literal
28	Literal
29	Literal
30	ExprTuple	34, 33
31	ExprTuple	34, 41
32	ExprTuple	35
33	Operation	operator: 36 operand: 40
34	Variable
35	Operation	operator: 38 operands: 39
36	Literal
37	ExprTuple	40
38	Literal
39	ExprTuple	40, 41
40	Variable
41	Variable