areas:: and shapes:: are two strikes with their own types, so an areas::Circle is not a shapes::Circle.
one_strike_two_prefixes/strike.zg
# One strike under two prefixes (Synthia's renamed copy, owner 2026-09-30): `areas::` and `shapes::`# are two strikes with their own types, so an `areas::Circle` is not a `shapes::Circle`. Both define# the word operator `mean` for two bins: the path picks one, and a bare `mean` would clash# (owner, 2026-10-02: the path settles it; 2026-10-06: a clash is refused where it is written).MAIN{let'a':areas::Circle=areas::Circle[radius=1.0];let'b':shapes::Circle=shapes::Circle[radius=2.0];std::print.useful[areas::circle[lend'a']," ",shapes::circle[lend'b'],newln];std::print.useful[1.0areas::mean3.0," ",1.0shapes::mean.low4.0,newln];}