• 335 Subsequence
ᐥThe sequence ｢a⸤n⸤r⸥⸥｣ is a subsequence of the sequence ｢a⸤n⸥｣ if ｢n⸤r⸥｣ is a strictly increasing sequence of natural numbers. ｢a⸤n⸥ Ƚn￫∞｣ = L ⇒ ｢a⸤n⸤r⸥⸥ Ƚn￫∞｣ = L ｢a⸤n⸥ Ƚn￫∞｣ = ∞ ⇒ ｢a⸤n⸤r⸥⸥ Ƚn￫∞｣ = ∞ᐥ ...
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