Add Set-Like Operations to FuzzySet Class and Improved variable name

[Shreya123714]

###hacktoberfest

Description

This pull request extends the functionality of the FuzzySet class by introducing set-like operations (&, |, ~) and adding corresponding doctests. These enhancements make the FuzzySet class even more versatile for working with fuzzy sets in the context of fuzzy logic.

Changes Made:

• Added the '&' (intersection), '|' (union), and '~' (complement) operations to the FuzzySet class, enabling set-like operations for fuzzy sets.
• Implemented corresponding doctests for the new operations, ensuring their correctness and reliability.

Purpose:

The purpose of these changes is to enhance the FuzzySet class's capabilities and make it more powerful for fuzzy logic and control systems. The introduction of set operations is a valuable addition for those working with fuzzy sets and fuzzy logic.

Testing:

The new code changes come with extensive doctests that verify the correctness of the '&' (intersection), '|' (union), and '~' (complement) operations. These tests cover various scenarios to ensure robustness and reliability.

I invite your review and feedback on these changes. Feel free to suggest any improvements or modifications to make the FuzzySet class even better. Your input is highly valued, and I aim to contribute to a more comprehensive and effective tool for fuzzy logic operations.

@cclauss

[Shreya123714]

Its been labeled invalid (I did something wrong 🫥, I am sorry!), do I close this request and make appropriate changes , commit and then open a new PR ??
sorry for this mistake
@cclauss

[Shreya123714]

Hi @cclauss , my pr has passed all checks , can you review it...
and Please remove this "invalid" label , otherwise this pr will not get counted in Hacktoberfest.. please help

[Shreya123714]

@cclauss thank you !!!
can you please review it... let me know if there are any feedbacks or/and suggestions?

[Shreya123714]

Please review this. 🙌🙏🙏

[cclauss]

Sorry, but lots of changes...

Traditionally dunder (double underscore) methods should appear at the top of the class with .__str__(), not at the bottom.

There should be one-- and preferably only one --obvious way to do it.
-- https://peps.python.org/pep-0020

My sense is that we should simplify by either having these dunder methods or the original four but not both. Decide whether your audience would prefer a syntax like Pythonset or a different one and then remove one group of methods.

Python set	Original four
~fuzzy_set	fuzzy_set.complement()
element in fuzzy_set -> bool	fuzzy_set.membership(element) -> float
fuzzy_set & other	fuzzy_set.intersection(other)
fuzzy_set | other	fuzzy_set.union(other)

Although Python sets do have .union() and .intersection().
https://docs.python.org/3/library/stdtypes.html#frozenset.union

[cclauss]

Error: fuzzy_logic/fuzzy_operations.py:181:32: F821 Undefined name an_element
Error: fuzzy_logic/fuzzy_operations.py:195:30: F821 Undefined name another_fuzzy_set
Error: fuzzy_logic/fuzzy_operations.py:196:37: F821 Undefined name another_fuzzy_set
Error: fuzzy_logic/fuzzy_operations.py:197:38: F821 Undefined name another_fuzzy_set
Error: fuzzy_logic/fuzzy_operations.py:198:26: F821 Undefined name another_fuzzy_set
Error: Process completed with exit code 1.

[Shreya123714]

Error: fuzzy_logic/fuzzy_operations.py:181:32: F821 Undefined name an_element Error: fuzzy_logic/fuzzy_operations.py:195:30: F821 Undefined name another_fuzzy_set Error: fuzzy_logic/fuzzy_operations.py:196:37: F821 Undefined name another_fuzzy_set Error: fuzzy_logic/fuzzy_operations.py:197:38: F821 Undefined name another_fuzzy_set Error: fuzzy_logic/fuzzy_operations.py:198:26: F821 Undefined name another_fuzzy_set Error: Process completed with exit code 1.

sorry for that, i will correct it

[Shreya123714]

sorry , i mistakenly resolve this conversetion related to , left_boundary <= peak <= right_boundary,

[Shreya123714]

Sorry, but lots of changes...

Traditionally dunder (double underscore) methods should appear at the top of the class with .__str__(), not at the bottom.

There should be one-- and preferably only one --obvious way to do it.
-- https://peps.python.org/pep-0020

My sense is that we should simplify by either having these dunder methods or the original four but not both. Decide whether your audience would prefer a syntax like Pythonset or a different one and then remove one group of methods.

Python set Original four
~fuzzy_set fuzzy_set.complement()
element in fuzzy_set -> bool fuzzy_set.membership(element) -> float
fuzzy_set & other fuzzy_set.intersection(other)
fuzzy_set | other fuzzy_set.union(other)
Although Python sets do have .union() and .intersection(). https://docs.python.org/3/library/stdtypes.html#frozenset.union

Let me think. it is confusing.