Import of TOBYINK/Number-Natural-SetTheory-0.004 from CPAN.

gitpan-cpan-distribution: Number-Natural-SetTheory
gitpan-cpan-version:      0.004
gitpan-cpan-path:         TOBYINK/Number-Natural-SetTheory-0.004.tar.gz
gitpan-cpan-author:       TOBYINK
gitpan-cpan-maturity:     released