User blog comment:VoidSansXD/Ordinal notation/@comment-35434595-20190217190037/@comment-37829460-20190218233309

G0 is gamma-nought

Δ75 is the 75th symbol, Δ(n) in general is the nth symbol, including ordinals.

You don't need LITERALLY EVERY SINGLE ORDINAL in order for it to be an ordinal notation. Also I'm not even good at notationss yet like chill