change some potentially error-prone provide all-from-outs to explicit provides and make set load its implementation via relative requires
change some potentially error-prone provide all-from-outs to explicit provides
and make set load its implementation via relative requires

mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket