### Textbook solutions

**Algebraic Topology** Allen Hatcher

Various solutions through chapter 3 (homology and some cohomology)
**Algebraic Topology**

**Basic Category Theory** Tom Leinster

Solutions to assorted exercises from the whole book
**Basic Category Theory**

**Sheaves in Geometry and Logic** MacLane and Moerdijk

Solutions to exercises and proofs of theorems in introductory topos theory
**Sheaves in Geometry and Logic**

**Algebraic Topology** William Massey

A few solutions from the chapters over fundamental group and covering space theory
**Algebraic Topology**

**Theory of Computation** Michael Sipser

Assorted solutions covering finite automata theory
**Theory of Computation**