 | Andrew Bell - Euclid's Elements - 1837 - 290 pages
...straight lines shall he parallel. Let the straight line EF, which falls upon the two straight lilies AB, CD, make the alternate angles AEF, EFD, equal to one another ; AB is parallel to CD. For, if it he not parallel, AB and CD, hcing produced, shall meet either towards... | |
 | Euclides - 1838 - 264 pages
...tri-o straight lines shall be parallel. Let the straight line EF, which falls upon the two straight lines AB, CD, make the alternate angles AEF, EFD equal to one another: AB shall be parallel to CD. For, if it be not parallel, AB and CD being produced will meet either towards... | |
 | Euclides - Geometry - 1841 - 378 pages
...these two straight lines shall be parallel. Let the straight line EF, which falls upon the two straight lines AB, CD make the alternate angles AEF, EFD equal to one another; AB shall be parallel to CD. For, if AB be not parallel to CD, AB and CD being produced will meet either... | |
 | Euclides - 1842 - 316 pages
...these two straight lines shall be parallel. Let the straight line EF, which falls upon the two straight lines AB, CD, make the alternate angles AEF, EFD equal to one another; AB is parallel to CD. For, if it be not parallel, AB and CD being produced shall meet either towards... | |
 | John Playfair - Euclid's Elements - 1842 - 332 pages
...these two straight lines are parallel. Let the straight line EF, which falls upon the two straight lines AB, CD make the alternate angles AEF, EFD equal to one another ; AB is parallel to CD. For, if it be not parallel, AB and CD being produced shall meet either towards... | |
 | Euclid - Geometry - 1845 - 218 pages
...these two straight lines shall be parallel. Let the straight line EF, which falls upon the two straight lines AB, CD, make the alternate angles AEF, EFD equal to one another ; AB is parallel to CD. For, if it be not parallel, AB and CD being produced shall meet either towards... | |
 | Euclides - 1845 - 546 pages
...these two straight lines shall be parallel. Let the straight line EF, which falls upon the two straight lines AB, CD, make the alternate angles AEF, EFD equal to one another. Then AB shall be parallel to CD. 7 > r D For, if AB be not parallel to CD, AB and CD being produced... | |
 | Euclides - 1846 - 292 pages
...these two straight lines shall be parallel. Let the straight line EF, which falls upon the two straight lines AB, CD, make the alternate angles AEF, EFD, equal to one another : AB is parallel to CD. For, if it be not parallel, AB and CD being produced shall meet either towards... | |
 | Euclid, John Playfair - Euclid's Elements - 1846 - 334 pages
...these two straight lines are parallel. Let the straight line EF, which falls upon the two straight lines AB, CD make the alternate angles AEF, EFD equal to one another ; AB is parallel to CD. For,- if it be not parallel, AB and CD being produced shall meet either towards... | |
 | Euclid, Thomas Tate - 1849 - 120 pages
...lines makes the alternate angles equal to one another, these two straight lines shall be parallel. lines AB, CD, make the alternate angles AEF, EFD equal to one another; AB is parallel to CD. For, if it be not parallel, AB and CD being produced, shall meet either towards... | |
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Let the straight line EF, which falls upon the two straight lines AB, CD, make the alternate angles AEF, EFD equal to one another; AB is parallel to CD. 
