def(--,[1,-]).
def(?,[dup,bool]).
def(++,[1,+]).
def(anamorphism,[[pop,[]],swap,[dip,swons],genrec]).
def(app1,[grba,infrst]).
def(app2,[[grba,swap,grba,swap],dip,[infrst],cons,ii]).
def(app3,[3,appN]).
def(appN,[[grabN],cons,dip,map,disenstacken]).
def(at,[drop,first]).
def(b,[[i],dip,i]).
def(binary,[unary,popd]).
def(ccons,[cons,cons]).
def(cleave,[fork,popdd]).
def(clop,[cleave,popdd]).
def(codireco,[cons,dip,rest,cons]).
def(dinfrirst,[dip,infrst]).
def(disenstacken,[?,[uncons,?],loop,pop]).
def(down_to_zero,[[0,>],[dup,--],while]).
def(drop,[[rest],times]).
def(dupdd,[[dup],dipd]).
def(dupdipd,[dup,dipd]).
def(enstacken,[stack,[clear],dip]).
def(fork,[[i],app2]).
def(fourth,[rest,third]).
def(gcd,[true,[tuck,mod,dup,0,>],loop,pop]).
def(grabN,[[],swap,[cons],times]).
def(grba,[[stack,popd],dip]).
def(hypot,[[sqr],ii,+,sqrt]).
def(ifte,[[nullary],dipd,swap,branch]).
def(ii,[[dip],dupdip,i]).
def(infer,[thunk,dup,rollup,infra]).
def(infra,[swons,swaack,[i],dip,swaack]).
def(infrst,[infra,first]).
def(least_fraction,[dup,[gcd],infra,[div],concat,map]).
def(make_generator,[[codireco],ccons]).
def(neg,[0,swap,-]).
def(nullary,[[stack],dinfrirst]).
def(of,[swap,at]).
def(pam,[[i],map]).
def(pm,[[+],[-],clop]).
def(popd,[[pop],dip]).
def(popdd,[[pop],dipd]).
def(popop,[pop,pop]).
def(popopd,[[popop],dip]).
def(popopdd,[[popop],dipd]).
def(primrec,[[i],genrec]).
def(product,[1,swap,[*],step]).
def(quoted,[[unit],dip]).
def(range,[[0,<=],[1,-,dup],anamorphism]).
def(range_to_zero,[unit,[down_to_zero],infra]).
def(reverse,[[],swap,shunt]).
def(rrest,[rest,rest]).
def(run,[[],swap,infra]).
def(second,[rest,first]).
def(shunt,[[swons],step]).
def(size,[0,swap,[pop,++],step]).
def(split_at,[[drop],[take],clop]).
def(sqr,[dup,*]).
def(step_zero,[0,rollup,step]).
def(sum,[0,swap,[+],step]).
def(swoncat,[swap,concat]).
def(swons,[swap,cons]).
def(take,[[],rolldown,[shift],times,pop]).
def(ternary,[binary,popd]).
def(third,[rest,second]).
def(unary,[nullary,popd]).
def(unquoted,[[i],dip]).
def(unswons,[uncons,swap]).
def(while,[swap,[nullary],cons,dup,dipd,concat,loop]).
def(x,[dup,i]).