More Lessons for Sets
A series of lectures on sets that are suitable for undergraduates: De Morgan's law and Logic
The following diagrams show the De Morgan's Law. Scroll down the page for more examples and solutions.
Proof that A'' = A, and introduction of De Morgan's law.
Proof of De Morgan's Law. Watch out for the typo when I'm doing part 2...I do correct it later though!
A short comment on the relationship between De Morgan's law and logic.
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