[微積]高微bounded的問題(proof)

[jenny0911820 (air)]

Srppose that Xn屬於R

Prove that {Xn}is bounded iff there is a C>0 such that |Xn|<=C
for all n屬於N(自然數)


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→ yhliu       :bounded 的定義?
→ Honor1984   :證明定義....
→ smartlwj    :會不會是定義不一樣?
→ Honor1984   :那也要他先給出定義阿
→ jenny0911820:Def:{Xn}is said to be bounded above iff there is
→ jenny0911820:M屬於R such that Xn<=M for all n屬於N