Barrow, Isaac, 1630-1677, Child, J. M. (James Mark), tr · Chicago, London : The Open court publishing company · leaf 151
the foregoing theorems are true, and for similarreasons, even if the curve VEH is convex to the line VD. From these theorems, the dimensions of a truly bound-less number of magnitudes (proceeding directly from theirconstruction) may be observed, andeasily verified by trial. 10. Again, if VH is a… … LECTURE XI • 131 the axis, then IZ is always equal to AT; in that case,I say, the space DHO is equal to the space VHD. This extremely useful theorem is due to that most learnedman, Gregory of Aberdeen: * we will add some deductionsfrom it. 11. With the same data, the solid formed by the rotationof…
Geometry
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