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This is a hand-edited transcription produced from Scans by Bayerische Staatsbibliothek using OCRmyPDF and translated with GPT4 via ChatGPT

CHAPTER NINE

BRIEF EPILOGUE, OR COMPILATION OF THE most essential points of the Art of Fencing, and the manner of discussing it; whose foundation will show it to be a science subordinate to Mathematics, arguing in this way.

The Queen of Mathematics, which is Geometry, has as the object of her demonstrations and evidences four kinds of continuous quantity: the Line, the Angle, the Surface, and the Body, as evidenced in the Elements of Euclid, of Apollonius, in the books of Archimedes, Pappus of Alexandria, and countless others, etc. The Art of Fencing is founded on the consideration of these same four kinds of continuous quantities of Lines, Angles, Surfaces or Planes, and Bodies caused by the movements of the Sword, as evidenced by all those who have written on this subject, and was specified in the Prologomenon I wrote in the Book of Science, whose repetition should not tire the Reader, because it also fits here: from which it follows that the Art of Fencing is one of the Mathematical Sciences, subordinate to Geometry. At the very least, it is shown that the purpose of the Art of Fencing is to defend oneself or to wound the opponent if it serves in defense; and this must necessarily be through the movements of the Body, and of the Sword and arm; these movements cannot be made without the formation of these four kinds of quantities; hence the Art of Fencing is based on these kinds of quantities.

The minor point is proven with the clear demonstration that every continuous quantity with its movement sometimes causes another quantity of the same kind as itself, and sometimes of a different kind; for example, the line that moves laterally causes a Surface, which is of a different kind than the line; but if it moves straightforwardly it causes a straight line: the Surface, when it moves according to its length, or width, causes a Surface; but moving according to the variety of its movement, and of its ends, which are lines: bodies also cause the same effect; for example, the Sphere, when moved on its axis maintains its same shape; but however else it moves straightforwardly it causes a Cylinder; and the Point, which is not a quantity, moving in any way causes a straight, circular, or mixed line.

In the Art of Fencing, the tip of the Sword represents a point, which when moved necessarily creates a straight, circular, or mixed line, depending on the type of its movement it will create a line or a flat or curved surface; and this surface with its movement will also create volume; and the Angle is formed from the intersection of the lines that are considered in these three types of quantity: thus it is clearly proven that movements cannot be regulated without first paying attention to the quantity that is formed from them, because to treat the Sciences methodically, what is first in resolution, is last in composition: all of this assumed, in order for us to speak on this matter with order and clarity, it will be necessary, according to Aristotle’s doctrine in his Analytics, starting by considering the Art of Fencing by its main objective, which is to wound or defend, we will find that it must necessarily be through the movements of the body and the Sword, which is the most universal thing found in this matter; then delve into the specifics, which is to consider in how many ways these movements can be, so that we take individual notice of each one: and considering well the power of the body and the arm, which is who has to move the Sword, we will find that each one can move in two different ways, namely straight or circularly; when the body moves straight it can be forward, backward, to one side, and to another, and by the mid-divisions, which come to be eight paths, or directions, that are considered for the steps; and when it moves circularly it can be by the circumference of three different circles; namely, its own, that of the middle of proportion, whose center the opponent occupies, and the common.

The Sword can move straight or circularly: straight will be when it goes in a straight line: circularly, when with the center of the arm, elbow, or wrist, it describes some circles with the tip of the Sword: this circular movement is considered in two ways, one when the Sword, forming a circle with the tip, moves on a plane: and the other is when it moves on a curved surface, forming Pyramids: the Planes can be vertical, horizontal, and oblique, as we will inform the fencer throughout.

Note that from the perfect knowledge of these Planes and Pyramids, one achieves the total perfection of this science, because not only do they regulate the movement of the Sword in the air; but also that of the body on the lower Plane, always having to find such a correspondence between the whole and its parts, that it is necessary to have only one north as a guide, and this is found in the speculation of the Planes and Pyramids.