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Textbooks, references and open learning resources.

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Elementary Foundations: An Introduction to Topics in Discrete Mathematics
Jeremy Sylvestre · University of Alberta Augustana
In the contents: 1.04: Tautologies and contradictions · 2.03: Converse Inverse and Contrapositive · 4.01: Predicates and Quantifers
GNU FDLCombinatorics and Discrete MathematicsMathematics 0 views

External
Discrete Math with SageMath
Hellen Colman · City Colleges of Chicago
In the contents: 03: Combinatorics · 3.01: Combinatorics · 7.05: Euler and Hamilton
CC BYMathematics 0 views