I've finally managed to prove something in Metamath, so here we go for
the simplest of starts, but hopefully a start that will be followed
up.
https://github.com/Prosfilaes/starner.mm/blob/master/starner.mm
--
The standard is written in English . If you have trouble understanding
a particular section, read it again and again and again . . . Sit up
straight. Eat your vegetables. Do not mumble. -- _Pascal_, ISO 7185
(1991)