A calculus of the absurd
1
Introduction
I
A Level mathematics (and further mathematics)
II
A Level Further Mathematics
III
General mathematics
19
Linear algebra, take 2
20
Set theory
21
More interesting combinatorics
21.1
The principle of inclusion-exclusion
22
Number theory
23
High-level logic
24
Lower-level logic
25
Graph theory
26
Real analysis
27
Abstract algebra
28
Probability
29
Statistics
IV
Algorithms
V
Computer science science stuff
VI
Miscellaneous
More interesting combinatorics
Chapter 21
More interesting combinatorics
21.1
The principle of inclusion-exclusion