Keywords: 2. Theorem.svg en Logic circuit with NAND and OR gates pt Circuíto lógico com portas NAND e OR 2 Teorema png 12/05/2012 vectorization 2016-08-16 original Rafael Fonseca de Souza ; vectorization User Perhelion <gallery widths 120 heights 50 showfilename> 1 _Theorem svg </gallery> h + d Cc-zero De Morgan's law NAND gate symbols OR gate symbols |