Geometry Without Axioms; Or the First Book of Euclid's Elements. With Alterations and Familiar Notes; and an Intercalary Book in which the Straight Line and Plane are Derived from Properties of the Sphere ...: To which is Added an Appendix ... |
From inside the book
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Page 12
... space as it did when the body was in the N M situation A. Also between the situations A and M , the body may be placed in other situations as N and O , in all of which the point B shall occupy the same place as when the body was in the ...
... space as it did when the body was in the N M situation A. Also between the situations A and M , the body may be placed in other situations as N and O , in all of which the point B shall occupy the same place as when the body was in the ...
Page 13
... space as they did when the body was in the situation A. And for the same reason , between the situations A and M the body may be placed in other situations as N and O , in all of which the points B and C shall respectively occupy the ...
... space as they did when the body was in the situation A. And for the same reason , between the situations A and M the body may be placed in other situations as N and O , in all of which the points B and C shall respectively occupy the ...
Page 17
... space CEGDHF and not else- where . For each of them will be * without change of place ; wherefore they must at all times coincide in that surface and not elsewhere ; for if they do not , one or both must have suffered change of place ...
... space CEGDHF and not else- where . For each of them will be * without change of place ; wherefore they must at all times coincide in that surface and not elsewhere ; for if they do not , one or both must have suffered change of place ...
Page 18
... space CEGDHF and not elsewhere , in whatsoever manner they may be turned about their respective centres . Let then the sphere whose centre is A , be turned about A , till the line on its surface which ori- ginally coincided with CEGDHF ...
... space CEGDHF and not elsewhere , in whatsoever manner they may be turned about their respective centres . Let then the sphere whose centre is A , be turned about A , till the line on its surface which ori- ginally coincided with CEGDHF ...
Page 23
... space about B were filled with some yielding substance like plaster , out of which a sphere was to be formed through the scraping away of the greatest possible quantity of matter by the turning of the sphere A in different directions ...
... space about B were filled with some yielding substance like plaster , out of which a sphere was to be formed through the scraping away of the greatest possible quantity of matter by the turning of the sphere A in different directions ...
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Geometry Without Axioms; Or the First Book of Euclid's Elements. with ... Thomas Perronet Thompson No preview available - 2015 |
Common terms and phrases
ABCD adjacent angles alternate angles angle ABC angle ACB angle BAC angular points assigned point Axiom axis base BC bisected called CEGDHF central distances change of place circle coincide throughout Constr demonstrated double equal angles equal straight lines equal to AC equal to EF equilateral triangle Euclid exterior angle extremities four right angles Geometry given straight line greater half the angle hard body inclose a space instance INTERC Intercalary Book ist equal join line AC magnitude manner meet opposite angles parallelogram parity of reasoning pass perpendicular prolonged Prop PROPOSITION proved quadrilateral radii radius rectilinear figure remain unmoved remaining angle remains at rest respectively SCHOLIUM self-rejoining line shown side BC side opposite situation sphere whose centre straight line BC tessera THEOREM.-If third side triangle ABC turned unlimited length Wherefore
Popular passages
Page 51 - When a straight line standing on another straight line makes the adjacent angles equal to one another, each of the angles is called a right angle ; and the straight line which stands on the other is called a perpendicular to it.
Page 109 - PARALLELOGRAMS upon the same base, and between the same parallels, are equal to one another...
Page 111 - Parallelograms upon the same base and between the same parallels, are equal to one another.
Page 120 - If the square described on one of the sides of a triangle be equal to the squares described on the other two sides of it, the angle contained by these two sides is a right angle.
Page 72 - Any two sides of a triangle are together greater than the third side.
Page 55 - From the greater of two given straight lines to cut off a part equal to the less. Let AB and C be the two given straight lines, whereof AB is the greater.
Page 103 - ... twice as many right angles as the figure has sides.
Page 70 - Any two angles of a triangle are together less than two right angles.
Page 138 - ... the exterior angle equal to the interior and opposite on the same side of the line ; and likewise the two interior angles on the same side of the line together equal to two right angles.
Page 106 - THE straight lines which join the extremities of two equal and parallel straight lines, towards the same parts, are also themselves equal and parallel.