limitations of our cognitive system? Or are errors indispensable parts of every intelligent system? From the first perspective, all errors are at best unnecessary and at worst harmful. Consider an error commonly made by children. When asked to find the sum of 1/2 and 1/3. the answer is often 2/5. This is called the freshman error of adding numerators and adding denominators {Silver. 1986). But ...

A symbol is a pattern (of physical marks, electromagnetic energy, etc.) which denotes, designates, or otherwise has meaning. The notion that intelligence requires the use and manipulation of symbols, and that humans are therefore symbol systems, has been extremely in uential in arti cial intelligence. keywords: symbol, reasoning, intelligence, representation, logic This article has two parts. W...

although england and the united states are both common law states and their legal systems follow the same rules, each has disregarded certain rules and changed them to suit specific circumstances. for instance, they have both disregarded the common law rule on the insertion of exemption conditions by carriers. regarding carrier’s liability towards passengers, the united states accepts the highe...

The order of discovery can have a profound effect upon the way in which we think about the function of a gene. In E. coli, recA is nearly essential for cell survival in the presence of DNA damage. However, recA was originally identified, as a gene required to obtain recombinant DNA molecules in conjugating bacteria. As a result, it has been frequently assumed that recA promotes the survival of ...

payment order in eft can be a negotiable instrument in two ways; it can be an instrument based on custom and regulation meaning that whether it should be considered as new instrument or be incorporated in one of the current instruments. in light of iranian legal system and against common law, it is not acceptable that a new negotiable instrument be created by custom because some characteristics...