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 P: 17 Let $$\Sigma$$ = {$$\beta$$,x,y,z} where $$\beta$$ denotes a blank, so x$$\beta \neq$$ x, $$\beta \beta \neq \beta$$, and x$$\beta$$y $$\neq$$ xy but x $$\lambda$$y = xy. Compute each of the following: 1: $$\parallel \lambda \parallel$$ 2: $$\parallel \lambda \lambda \parallel$$ 3: $$\parallel \beta \parallel$$ 4: $$\parallel \beta \beta \parallel$$ 5: $$\parallel \beta$$3 $$\parallel$$ 6: $$\parallel$$ x $$\beta \beta$$ x $$\parallel$$ 7: $$\parallel \beta \lambda \parallel$$ 8: $$\parallel \lambda$$ 10 $$\parallel$$ Uhm.. can someone help me out ? I've tried like 3 days now (without progress). Discrete math sux :P