[–] nanis 9y ago ↗ Nothing surprising about this if you know grade school math. Nor is it really about Python at all.The empty set is a subset of every set. [–] billowycoat 9y ago ↗ Are strings sets? [–] nanis 9y ago ↗ Analogously, the empty net is a subnet of every net, the empty sequence is a subsequence of every sequence etc etc.Also, [p implies q] is vacuously true if p is false.Strings are maps from nonnegative integers to the space of characters. You can think of them as sets of ordered pairs or sequences.
[–] billowycoat 9y ago ↗ Are strings sets? [–] nanis 9y ago ↗ Analogously, the empty net is a subnet of every net, the empty sequence is a subsequence of every sequence etc etc.Also, [p implies q] is vacuously true if p is false.Strings are maps from nonnegative integers to the space of characters. You can think of them as sets of ordered pairs or sequences.
[–] nanis 9y ago ↗ Analogously, the empty net is a subnet of every net, the empty sequence is a subsequence of every sequence etc etc.Also, [p implies q] is vacuously true if p is false.Strings are maps from nonnegative integers to the space of characters. You can think of them as sets of ordered pairs or sequences.
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[ 4.5 ms ] story [ 14.7 ms ] threadThe empty set is a subset of every set.
Also, [p implies q] is vacuously true if p is false.
Strings are maps from nonnegative integers to the space of characters. You can think of them as sets of ordered pairs or sequences.