h3. Explicaţie
* Cand $a=0, b=0, c=0$ expresie are valoarea $0$
* Cand $a=0, b=0, c=1$ expresie are valoarea $1$
* Cand $a=0, b=1, c=0$ expresie are valoarea $1$
* Cand $a=0, b=1, c=1$ expresie are valoarea $0$
* Cand $a=1, b=0, c=0$ expresie are valoarea $1$
* Cand $a=1, b=0, c=1$ expresie are valoarea $0$
* Cand $a=1, b=1, c=0$ expresie are valoarea $0$
* Cand $a=1, b=1, c=1$ expresie are valoarea $1$
* Cand a=0, b=0, c=0 expresie are valoarea 0
* Cand a=0, b=0, c=1 expresie are valoarea 1
* Cand a=0, b=1, c=0 expresie are valoarea 1
* Cand a=0, b=1, c=1 expresie are valoarea 0
* Cand a=1, b=0, c=0 expresie are valoarea 1
* Cand a=1, b=0, c=1 expresie are valoarea 0
* Cand a=1, b=1, c=0 expresie are valoarea 0
* Cand a=1, b=1, c=1 expresie are valoarea 1
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