?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=PENERAPAN+HIMPUNAN+ROUGH+PADA+STRUKTUR+SEMIGRUP%0D%0AMENGGUNAKAN+KONSEP+PRABA&rft.creator=Bidari+Tasya+%2C+Salsabila&rft.subject=510+Matematika&rft.description=An+information+system+is+formed+based+on+the+universal+set+U+and+the+attributes+A%2C+which+are+expressed+with+the+notation+(U%2CA)+and+the+membership+value+of+the+set.+The+fuzzy+and+form+equivalence+classes+are+based+on+IND(P).+If+given+set+X+%E2%8A%86+U%2C+the+set+of+ordered+pairs+of+upper+approximations+of+Apr(X)+and+the+lower+approximation+of+Apr(X)+is+called+a+rough+set+if+Apr(X)+%E2%88%92+Apr(X)+%CC%B8%3D+%E2%88%85%2C+then+given+the+set+of+all+defined+rough+sets+T+%3D+%7BRS(X)%7CX+%E2%8A%86+U%7D.+In+this+study%2C+rough+semigroups+were+constructed+using+the+Praba+concept+with+operations+%E2%96%B3+and+%E2%96%BD+and+provided+construction+examples+of+rough+semigroups+and+their+properties+using+the+Praba+concept%2C+as+well+as+a+program+to+prove+rough+semigroups+with+operations+%E2%96%B3+and+%E2%96%BD+using+the+Praba+concept.Keywords%3A+Indiscernibility+relation%2C+Approximation+space%2C+Rough+set%2C+Rough+semigroup%2C+Praba+concept&rft.publisher=FAKULTAS+MATEMATIKA+DAN+ILMU+PENGETAHUAN+ALAM&rft.date=2024-01-23&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F78843%2F1%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F78843%2F9%2FSKRIPSI%2520FULL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F78843%2F10%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.identifier=++Bidari+Tasya+%2C+Salsabila++(2024)+PENERAPAN+HIMPUNAN+ROUGH+PADA+STRUKTUR+SEMIGRUP+MENGGUNAKAN+KONSEP+PRABA.++FAKULTAS+MATEMATIKA+DAN+ILMU+PENGETAHUAN+ALAM%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F78843%2F