{"text_format":"2","workbook":"xls","n_sheets":1,"sheets":["report2"],"not_rendered":{"charts":0,"images":0,"macros":0,"external_links":1,"defined_names":1,"comments":0,"pivot_tables":0},"unopened":[],"bounds":{"document_bytes":16777216,"sheet_cells":100000,"run_cost":"one","rows_first":2000,"rows_last":500,"rows_between":2000,"halvings":0,"cell_chars":16384,"cell_head_chars":4096},"cells_cut":0,"cells_raw":0,"read":"whole","date_system":"1900","formulas":"cached_only"}

{"sheet":"report2","index":0,"n_rows":19,"n_cols":5,"rows_kept":19,"cut":false,"hidden":false,"merged":[[0,2,0,3],[0,4,0,5],[1,2,1,3],[1,4,1,5],[2,2,2,3],[2,4,2,5],[3,2,3,3],[5,2,5,3],[6,2,6,3],[7,2,7,3],[12,2,12,3],[13,2,13,3]],"flags":["formulas_cached_only"]}
[null,"1.","Record Nr.",null,"UNINA9910707834703321"]
[null,null,"Autore",null,"Butler Ricky W."]
[null,null,"Titolo",null,"A bitvectors library for PVS / / Ricky W. Butler [and four others]"]
[null,null,"Pubbl/distr/stampa",null,"Washington, D.C., : National Aeronautics and Space Administration, 1996"]
[{"$nulls":4},"Hampton, Virginia : , : National Aeronautics and Space Administration, Langley Research Center, , August 1996"]
[null,null,"Descrizione fisica",null,"1 online resource (17 pages) : illustrations"]
[null,null,"Collana",null,"NASA technical memorandum ; ; 110274"]
[null,null,"Soggetti",null,"Hardware"]
[{"$nulls":4},"Proving"]
[{"$nulls":4},"Bit synchronization"]
[{"$nulls":4},"Integers"]
[{"$nulls":4},"Libraries"]
[null,null,"Lingua di pubblicazione",null,"Inglese"]
[null,null,"Formato",null,"Materiale a stampa"]
[null,null,null,"Livello bibliografico","Monografia"]
[null,null,null,"Note generali","\"August 1996.\""]
[{"$nulls":4},"\"Performing organization: National Aeronautics and Space Administration Langley Research Center\" Report documentation page."]
[null,null,null,"Nota di bibliografia","Includes bibliographical references (pages 16-17)."]
[null,null,null,"Sommario/riassunto","This paper describes a bitvectors library that has been developed for PVS. The library defines a bitvector as a function from a subrange of the integers into (0,1). The library provides functions that interpret a bitvector as a natural number, as a 2's complement number, as a vector of logical values and as a 2's complement fraction. The library provides a concatenation operator and an extractor. Shift, extend and rotate operations are also, defined. Fundamental properties of each of these operations have been proved in PVS."]