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الدراسات والتعليم الجامعي / In Discrete Math..
« في: أكتوبر 15, 2007, 01:09:19 صباحاً »
مرحبا ، أرجو مساعدتي في حل هذا الإثبات..
show that if f:X>>Y
g: X>>X is the identity function, and h:Y>>Y is identity function too..
prove that:
(i)- f 0 h = f
(ii)- g 0 f = f
where 0 is the composition sign...الدالة المركبة
thanks in advance..
show that if f:X>>Y
g: X>>X is the identity function, and h:Y>>Y is identity function too..
prove that:
(i)- f 0 h = f
(ii)- g 0 f = f
where 0 is the composition sign...الدالة المركبة
thanks in advance..