The school edition. Euclid's Elements of geometry, the first six books, by R. Potts. corrected and enlarged. corrected and improved [including portions of book 11,12].1864 |
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Página v
... means of developing and cultivating the reason and that " the object of a liberal education is to develope the whole mental system of man ; -to make his speculative inferences coincide with his practical convictions ; -to enable him to ...
... means of developing and cultivating the reason and that " the object of a liberal education is to develope the whole mental system of man ; -to make his speculative inferences coincide with his practical convictions ; -to enable him to ...
Página 42
... means , a visible sign or mark on a surface , in other words , a physical point . The English term point , means the sharp end of any thing , or a mark made by it . The word point comes from the Latin punctum , through the French word ...
... means , a visible sign or mark on a surface , in other words , a physical point . The English term point , means the sharp end of any thing , or a mark made by it . The word point comes from the Latin punctum , through the French word ...
Página 43
... mean , that no part of the line which is called a straight line deviates either from one side or the other of the direction which is fixed by the extremities of the line ; and thus it may be distinguished from a curved line , which does ...
... mean , that no part of the line which is called a straight line deviates either from one side or the other of the direction which is fixed by the extremities of the line ; and thus it may be distinguished from a curved line , which does ...
Página 49
... means of self - evident axioms , or of propositions already demonstrated . 8. To substitute mentally the definition instead of the thing defined . ” Of these rules , he says , " the first , fourth and sixth are not absolutely necessary ...
... means of self - evident axioms , or of propositions already demonstrated . 8. To substitute mentally the definition instead of the thing defined . ” Of these rules , he says , " the first , fourth and sixth are not absolutely necessary ...
Página 50
Euclides Robert Potts. that the general theorems of Geometry are demonstrated by means of syllogisms founded on the axioms and definitions . Every syllogism consists of three propositions , of which , two are called the premisses , and ...
Euclides Robert Potts. that the general theorems of Geometry are demonstrated by means of syllogisms founded on the axioms and definitions . Every syllogism consists of three propositions , of which , two are called the premisses , and ...
Otras ediciones - Ver todas
The School Edition. Euclid's Elements of Geometry, the First Six Books, by R ... Euclides Sin vista previa disponible - 2023 |
The School Edition. Euclid's Elements of Geometry, the First Six Books, by R ... Euclides Sin vista previa disponible - 2018 |
The School Edition. Euclid's Elements of Geometry, the First Six Books, by R ... Euclides Sin vista previa disponible - 2016 |
Términos y frases comunes
A₁ ABCD AC is equal Algebraically angle ABC angle ACB angle BAC angle equal Apply Euc base BC chord circle ABC constr describe a circle diagonals diameter divided double draw equal angles equiangular equilateral triangle equimultiples Euclid Euclid's Elements exterior angle Geometrical given angle given circle given line given point given straight line gnomon greater hypotenuse inscribed intersection isosceles triangle less Let ABC line BC lines be drawn multiple opposite angles parallelogram parallelopiped pentagon perpendicular polygon problem produced Prop proportionals proved Q.E.D. PROPOSITION radius ratio rectangle contained rectilineal figure remaining angle right angles right-angled triangle segment semicircle shew shewn similar solid angle square on AC tangent THEOREM touch the circle trapezium triangle ABC twice the rectangle vertex vertical angle wherefore
Pasajes populares
Página 112 - Guido, with a burnt stick in his hand, demonstrating on the smooth paving-stones of the path, that the square on the hypotenuse of a right-angled triangle is equal to the sum of the squares on the other two sides.
Página 83 - If a straight line be bisected, and produced to any point ; the rectangle contained by the whole line thus produced, and the part of it produced, together with the square...
Página 48 - If two triangles have two sides of the one equal to two sides of the other, each to each ; and...
Página 238 - The first of four magnitudes is said to have the same ratio to the second, which the third has to the fourth, when any equimultiples whatsoever of the first and third being taken, and any equimultiples whatsoever of the second and fourth; if the multiple of the first be less than that of the second, the multiple of the third is also less than that of the fourth...
Página 198 - A LESS magnitude is said to be a part of a greater magnitude, when the less measures the greater, that is, ' when the less is contained a certain number of times exactly in the greater.
Página 271 - SIMILAR triangles are to one another in the duplicate ratio of their homologous sides.
Página 81 - If a straight line be divided into any two parts, the rectangle contained by the whole and one of the parts, is equal to the rectangle contained by the two parts, together with the square of the aforesaid part.
Página 115 - angle in a segment' is the angle contained by two straight lines drawn from any point in the circumference of the segment, to the extremities of the straight line which is the base of the segment.
Página 341 - On the same base, and on the same side of it, there cannot be two triangles...
Página 24 - ... twice as many right angles as the figure has sides ; therefore all the angles of the figure together with four right angles, are equal to twice as many right angles as the figure has sides.