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$4a

a+a+a+a

= [[P r o d u k t * W o r d l i s t * ∣ P r o d u k t e n]]

4a

b e t y d e r a t t d e t f i n n s 4 s t y c k e n

a$:n. Det kan man skriva som en summa, t.ex.

4 \cdot 5 y = 5 y + 5 y + 5 y + 5 y .

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