Original sentence: A  brief overview of those problems, and of the solutions which certain philosophers have offered, indicates the  scope of this problem.A primary sense of the concept which attaches to this word derives from its latin origin, and associates the word 'existence' with the concept of  "the act of 'being'".However, this simplistic view is vulnerable to a number of philosophical or epistomological objections, and the problem of existence, what 'existence' entails, and how may 'existence' be spoken about, remains one which presently exercises the minds of contemporary philosophers.In first-order logic, existence is the attrubute which is asserted by statements  of the form "for some x, Fx".The Everyday Oxford Dictionary has, for the entry on existence, a primary definition -"to have place as part of what is real", then goes on with "to occur or be found" and "to continue living".There are many difficulties in arriving at  a definition of the word existence which is suitable for use in the many different contexts in which existence is discussed.This general sense is amplified or modified appropriately when the word 'existence' is used in specific contexts
Edited sentence: Literally, it means (that is, it is defined to mean) the act of 'being'.The dominant view of twentieth-century and contemporary Anglo-American philosophy is that existence is what is asserted by statements of first-order logic of the form "for some x, Fx".There is no universally accepted theory as to what the word "existence" means.This article is a brief overview of those problems, of the solutions which certain philosophers have offered, and suggestions for further reading.Unfortunately, this simplistic view is vulnerable to a number of philosophical objections, and the problem of existence is one which still exercises the minds of contemporary philosophers