Unit test: formalgroup.004
Chapter 1. Testing formal group enumeration
1 With inherited numeration
Equation 1.1 Euler’s identity and mass-energy equivalence
eπi + 1 = 0
Subequation 1.1.1 Euler’s identity

Subequation 1.1.2 Mass-energy equivalence
This group isn’t “page wide”.
Equation 1.2 Mass-energy equivalence and Euler’s identity

Subequation 1.2.1 Mass-energy equivalence
eπi + 1 = 0
Subequation 1.2.2 Euler’s identity