Logic in Medieval and Modern Logic '!

In the 9th century to 15th century, books such as Aristotle's De interpretatione, Eisagoge by Porphyus and works of Boethius wasis used.

Thomas Aquinas 1224-1274 and his friends try to establish logical systematization.Thus was born the modern logic with figures such as:• Peter Hispanus (1210 - 1278)• Roger Bacon (1214-1292)• Raymundus Lullus (1232 -1315) who discovered a new method of logic called Ars Magna, which is a kind of algebraic understanding.• William Ocham (1295 - 1349)Development and use of a pure Aristotelian logic forwarded by Thomas Hobbes (1588 - 1679) with his work Leviathan and John Locke (1632-1704) in An Essay Concerning Human UnderstandingFrancis Bacon (1561 - 1626) to develop inductive logic introduced in his Novum Organum Scientiarum.J.S. Mills (1806 - 1873) continued the emphasis on thinking logic of induction in his System of LogicThen logic enriched by the presence of pioneers such as symbolic logic:• Gottfried Wilhelm Leibniz (1646-1716) compiled by Ars Magna algebraic logic of Raymundus Lullus. Logic is intended to simplify the work of reason and further refine certainty.• George Boole (1815-1864)• John Venn (1834-1923)• Gottlob Frege (1848 - 1925)•Then Chares Sanders Peirce (1839-1914), a philosopher of the United States who has taught at Johns Hopkins University, complete with symbolic logic works he wrote. He introduced the argument Peirce (Peirce's Law) that interprets the logic as a general theory of signs (general theory of signs)Symbolic logic heyday occurred in 1910-1913 with the publication of three volumes of Principia Mathematica which is a joint work of Alfred North Whitehead (1861 - 1914) and Bertrand Arthur William Russell (1872-1970).Symbolic Logic and forwarded by Ludwig Wittgenstein (1889-1951), Rudolf Carnap (1891-1970), Kurt Godel (1906-1978), and others.Logic as a pure mathematicianThe logic in the category of pure mathematics because mathematics is logic tersistematisasi. Mathematics is a logical approach to the geometry methods that use signs or mathematical symbols (symbolic logic). Tersistematisasi logic introduced by two medical doctors, Galenus (130-201 AD) and Sextus Empiricus (around 200 AD) who developed logic by applying geometry.The peak occurred in symbolic logic 1910-1913 with the publication of three volumes of Principia Mathematica which is a joint work of Alfred North Whitehead (1861 - 1914) and Bertrand Arthur William Russell (1872-1970).Uses logic1. Help everyone learn the logic to think rationally, critically, straight, fixed, orderly, methodical and coherent.2. Improving the ability to think abstractly, careful, and objective.3. Adding intelligence and improve thinking skills sharp and independent.4. Forcing and encouraging people to think for themselves by using the principles of systematic5. Increases love for the truth and avoid berpkir mistakes, errors and error.6. Able to perform analysis of an event.7. Protected from the occult, gugon-tuhon (Javanese)8. When it is able to think rationally, critically, straight, methodical and analytical, as mentioned in the first item will increase a person's self-image.