4,781
edits
Changes
Jump to navigation
Jump to search
added another basic math concept that was wanted
Mathematical objects '''intersect''' when they have something in common. For example, the sets {1,2,3,4} and {2,4,6} intersect as {2,4}.
From geometry we have another example. [[Euclid]] postulated that:
<blockquote>
When two lines are not parallel, they must intersect.
</blockquote>
[[Non-Euclidean_geometry|Non-Euclidean geometry]] concerns [[Geometry|geometries]] where the conclusion need not hold.
From geometry we have another example. [[Euclid]] postulated that:
<blockquote>
When two lines are not parallel, they must intersect.
</blockquote>
[[Non-Euclidean_geometry|Non-Euclidean geometry]] concerns [[Geometry|geometries]] where the conclusion need not hold.