In this paper, we introduce the notion of derivations for a trellis and investigate some related properties of this subject. We give some equivalent conditions under which a derivation is isotone for trellises. Also, we study xed points and de ne f -derivation on T and cartesian derivation on T1 T2.

Toll road construction is being intensively conducted by the government, especially in Jabodetabek. This makes the schedule of Jabodetabek toll road construction very urgent to solve due to the demands of the target of the completion of the development and it is feared to disturb the existing road condition....

The general form of an geometric sequence is t, tp, tp2, tp3, … , tpn-1, …This sequence is one of integer sequences. The rule for determining the nth term is un = tpn-1. The specific sequence that is generated by this gemetric sequence is t, t, t, … [t times], (tp), (tp), (tp),… [(tp) times], (tp2),(tp2),(tp2),...