MOBI automatically calculates the Lagrangian provided the symmetry group and the particle content of a given model. It also allows to extract individual interactions of particles. It speeds up the model-building and avoids making errors such as forgetting crucial terms. Five theories based on (products of) abelian and discrete symmetries are given as examples to showcase the performances of the code.

• 01/08/2015: fixed bug in liExtract, added elegant definition of groups, added model 'radiative inverse seesaw'.
• 27/07/2015: added liDim to name the couplings of the lagrangian with meanigful symbols. Defined li[Chi]prod to handle chirality as a symmetry.
• 07/12/2014: fixed misc bugs, added U(1) support, defined Z2 + SU(3), renormailzability check, conjugability. New convention for particles names: fermions must start with F. Conjugate particles are defined with "Conjugate".
• 01/2012: creation.