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.diegojavierfares.com/flash-buy-Whirlpool-8kg-Silver-Condenser-Tumble-Dryer-FFT-CM11-8BSK-SA-quick-deal/