A generic title that is also a “logical proposition” taken from philosophy lessons in secondary education —in which it is necessary to discern between true (T) or false (F)— gathers this collection of drawings and paintings of outstanding national artists. The works, from different sources (private collections, the Museo Nacional de Artes Visuales and the Tristán Narvaja street market), are distributed in five large showcases. The ensemble raises a series of questions: What is an author? Can we appreciate works whose authorship is uncertain? How to know which ones are true and which ones are false? Does it matter?