http://www.amazon.com/gp/product/1591026865/ref=ox_sc_act_title_1?ie=UTF8&psc=1&smid=A3ET5D434RAXJV Here is a link to an excellent guide to the Symbolic Logic used by Mathematicions. The book is "Mathematics in 10 Lessons" by Jerry King ISBN-10: 1591026865 and the early focus of the book is Mathematical Logic. Used Copies in Good condition and better can be had.

Logic is derived from Geometry and Math. 1. Know Aristotle's Three Laws of Logic 2. Study the Axioms of Mathematics which serve for the premises. 3. Become familiar with the "plasticity" of numbers. For example all of the following are equal to the same value, 1/2. .50 .500 .5000 5/10 10/20 20/40 50/100 50% 100/200 ....etc. 3. Familiarize yourself with the idea that all numbers are divided by 1, and all numbers are multiplied by 1. It helps to write this out. 1 = 1 x 1, 2 = 1 x 2, 3 = 1 x 3 and 1 = 1/1 2 = 2/1 3 = 3/1 To study math in and of itself, is an exercise in Logic, and you should realize that Equations are statements of Idenity, and all other staements, not = to the numerical value designated for the identity, are either expressions of the logical error termed the Contradiction or statements of the logical error termed the Excluded Middle or Excluded Mean Value or Middling Value. .