00825nam0-22003011i-450-9900010964704033210-19-824934-9000109647FED01000109647(Aleph)000109647FED0100010964720000920d1989----km-y0itay50------baengMathematics without NumbersTowards a Modal-Structural InterpretationGeoffrey HellmanOxfordClarendon Press1989ix, 154 p.22 cmLogicaRicorsività160Hellman,Geoffrey45146ITUNINARICAUNIMARCBK9900010964704033217-26616927FI1FI1Mathematics without Numbers335423UNINAING01