In the last years there has been and increasing demand of a variety of logical systems. prompted mostly by applications of logic in AI. logic programming an other related areas. Labeled Deductive Systems (LDS) were developed as a flexible methodology to formalize such a kind of complex logical systems. https://www.ealisboa.com/deal-time-FreeMax-Marvos-T-S-X-X-Pro-Replacement-Coils-5-Pack-save-more/