books.google.fr - This book reclaims logic as a branch of philosophy, offering a self-contained and complete introduction to the three traditional systems of classical logic (term, sentence, and predicate logic) and the philosophical issues that surround those systems. The exposition is lucid, clear, and engaging. Practical...https://books.google.fr/books/about/An_Introduction_to_Logical_Theory.html?hl=fr&id=oY-7AAAAQBAJ&utm_source=gb-gplus-shareAn Introduction to Logical Theory
