Abstract
An innovative list of 75 logic problems for testing ATP systems was introduced in 1986. The problems are presented in a natural first-order form (FOF), and most of them are also given in an equivalent negated conclusion clause normal form (CNF). However, shortly the introduction of the logic problems, some errata are presented. In particular, Problem 62 was corrected. But recently, it has been discovered that both the CNF and FOF version of the Problem 62 of the errata presented are incorrect. This paper presents the correct version of Problem 62. Problem 62 is on of four variations on the same problem, the others being Problems 17, 33 and 38. The relationships among these problems are discussed. Their CNF versions and an explanation of the relevant of Problem 62 are also given.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 135 |
| Number of pages | 1 |
| Journal | Journal of Automated Reasoning |
| Volume | 18 |
| Issue number | 1 |
| DOIs | |
| State | Published - Feb 1997 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Artificial Intelligence
Cite this
Erratum for some errata to ATP problems. / Pelletier, Francis Jeffry; Sutcliffe, Geoffrey.
In: Journal of Automated Reasoning, Vol. 18, No. 1, 02.1997, p. 135.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Erratum for some errata to ATP problems
AU - Pelletier, Francis Jeffry
AU - Sutcliffe, Geoffrey
PY - 1997/2
Y1 - 1997/2
N2 - An innovative list of 75 logic problems for testing ATP systems was introduced in 1986. The problems are presented in a natural first-order form (FOF), and most of them are also given in an equivalent negated conclusion clause normal form (CNF). However, shortly the introduction of the logic problems, some errata are presented. In particular, Problem 62 was corrected. But recently, it has been discovered that both the CNF and FOF version of the Problem 62 of the errata presented are incorrect. This paper presents the correct version of Problem 62. Problem 62 is on of four variations on the same problem, the others being Problems 17, 33 and 38. The relationships among these problems are discussed. Their CNF versions and an explanation of the relevant of Problem 62 are also given.
AB - An innovative list of 75 logic problems for testing ATP systems was introduced in 1986. The problems are presented in a natural first-order form (FOF), and most of them are also given in an equivalent negated conclusion clause normal form (CNF). However, shortly the introduction of the logic problems, some errata are presented. In particular, Problem 62 was corrected. But recently, it has been discovered that both the CNF and FOF version of the Problem 62 of the errata presented are incorrect. This paper presents the correct version of Problem 62. Problem 62 is on of four variations on the same problem, the others being Problems 17, 33 and 38. The relationships among these problems are discussed. Their CNF versions and an explanation of the relevant of Problem 62 are also given.
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UR - http://www.scopus.com/inward/citedby.url?scp=0031075790&partnerID=8YFLogxK
U2 - 10.1023/A:1005764705033
DO - 10.1023/A:1005764705033
M3 - Article
AN - SCOPUS:0031075790
VL - 18
SP - 135
JO - Journal of Automated Reasoning
JF - Journal of Automated Reasoning
SN - 0168-7433
IS - 1
ER -