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A comment on What Is Idempotence?. Parent comment

Re:What Is Idempotence? by hcarvalhoalves on Thursday April 04, 2019 @08:22PM (#19578463)
You're assuming there's no other thread modifying `a` between the assignments. That would make both examples non-idempotent.
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Re:What Is Idempotence? by dllthomas on Thursday April 11, 2019 @01:44PM (#19637173)
Idempotent means "aa = a." "For all b, aba = ba" is a different property.
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