Sheets, Semi-Critical Subsets of Chi...
date: label: date made
content: 1988
notes: label: Description
content: This is a set of forms printed in conjunction with a revised proof of the four color problem published in 1989. Included are over 400 pages of handwritten tabulations used by Wolfgang Haken and Kenneth Appel. A mark reads: Semi-critical subsets of chi [. . .]. Another mark reads: Jan. 88.
label: Location
content: Currently not on view
topic: label: Subject
content: Mathematics
setName: label: See more items in
content: Medicine and Science: Mathematics
creditLine: label: Credit Line
content: Gift of Wolfgang Haken
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1999.3075.02
label: nonaccession number
content: 1999.3075
label: catalog number
content: 1999.3075.02
objectType: label: Object Name
content: Sheets, Set Of
physicalDescription: label: Physical Description
content: paper (overall material)
label: Measurements
content: overall: 10 cm x 25 cm x 30.6 cm; 3 15/16 in x 9 27/32 in x 12 1/16 in