Answer
a) If there is a printer that is out of service and is busy, then there is a print, job that is lost.
b) If all printers are busy, then there is a print job that is queued.
c) If there exists a print job that is lost and queued, then there exists a printer that is out of service.
d) If all printers are busy and all print jobs are queued, then there exists a print job that is lost.
Work Step by Step
a) $\rightarrow$ means IF-THEN, $\land$ means AND, $\exists$ means THERE EXISTS.
If there is a printer that is out of service and is busy, then there is a print, job that is lost.
b)$\rightarrow$ means IF-THEN, $\forall$ means ALL, $\exists$ means THERE EXISTS.
If all printers are busy, then there is a print job that is queued.
c) $\rightarrow$ means IF-THEN, $\forall$ means ALL, $\exists$ means THERE EXISTS.
If there exists a print job that is lost and queued, then there exists a printer that is out of service.
d) $\rightarrow$ means IF-THEN, $\forall$ means ALL, $\exists$ means THERE EXISTS and $\forall$ means ALL.
If all printers are busy and all print jobs are queued, then there exists a print job that is lost.
