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OpenStudy (_euler_):
Formal Language Theory: Let L be a non-empty Language over an alphabet Σ. Show that L² ⊆ L³ iff λ ∈ L. I just need a kick-start in the right direction to know how to approach this. λ represents the empty string btw.
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NvidiaIntely (nvidiaintely):
What language is this?
OpenStudy (dragoness):
@NvidiaIntely Formal Language. I believe it's to do with this: https://en.wikipedia.org/wiki/Formal_language I've not studied anything like this yet in any depth so I can't really help you OP.
thomaster (thomaster):
It's Greek
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