successions

Si a_{n+m} = a_{n}+a_{m} ==> (a_{n}/n) = a_{1}

a_{n} = a_{1+...(n)...+1} = n·a_{1}

Si ( a_{n+m} = a_{n}+a_{m} & a_{1} >] 0 ) ==> a_{n} és creishent

Si ( a_{n+m} = a_{n}+a_{m} & a_{1} [< 0 ) ==> a_{n} és decreishent

a_{n+1} = a_{n}+a_{1} >] a_{n}

a_{n+1} = a_{n}+a_{1} [< a_{n}