sequences.deep: find drop >boolean is any?
sequences.deep: find drop >boolean is any?

mcandre/factor,erg/factor,erg/factor,mcandre/factor,mcandre/factor,erg/factor,erg/factor,mcandre/factor,erg/factor,mcandre/factor,erg/factor,erg/factor,mcandre/factor,mcandre/factor