TEXTBOOK AND LECTURE RECORD

Know where each explanation comes from.

Susanna S. Epp

Discrete Mathematics with Applications · Fifth Edition · Metric Version · ©2020 · ISBN 9780357114087

Open textbook ↗
Additional sources used by the earlier glossary

Oscar Levin · Discrete Mathematics: An Open Introduction ↗

MIT · Mathematics for Computer Science (2015) ↗

Supplementary explanations; Epp’s sequence and conventions take precedence.

September 7 board: Recap
07.09.2026 · Board photo

Recap

Quantifiers and negation. Lecturer examples use the set {2,3,4}.

September 7 board: Negations
07.09.2026 · Board photo

Negations

Negation rules are applied one at a time; the variable order stays the same.

September 7 board: Even / odd
07.09.2026 · Board photo

Even / odd

On the board a,b are integers: 6a²b = 2(3a²b); 10a+8b+1 = 2(5a+4b)+1.

September 7 board: Prime / composite
07.09.2026 · Board photo

Prime / composite

Definitions of prime and composite numbers. Part of the continuation is obscured; no verbatim transcription of hidden text is claimed.