There exists a wide range of philosophical views on man's obligations or motivations to act altruistically.

* There exists a model of ZF ¬ C in which there is a function f from the real numbers to the real numbers such that f is not continuous at a, but f is sequentially continuous at a, i. e., for any sequence

There also exists in heraldry the " Anchored Cross ", or Mariner's Cross, a stylized cross in the shape of an anchor.

There also exists a caspase-independent apoptotic pathway that is mediated by AIF ( apoptosis-inducing factor ).

; Identity element: There exists an element e in A, such that for all elements a in A, the equation holds.

There are a number of different categories that board games can be broken up into, although considerable overlap exists, and a game may belong in several categories.

There also exists a Vocaloid song sung by Len Kagamine, Dream Eating Monochrome Baku, about the Baku, depicting it / him as a sharply dressed blond boy ( Len Kagamine ) with an elephant cane.

There exists a limited tradition of Breton literature.

There also exists a monolingual dictionary, Geriadur Brezhoneg an Here, defining Breton words in Breton.

There exists a photo of the Captain and his dog outside his cabin on the ship.

There is debate as to whether time exists only in the present or whether far away times are just as real as far away spaces, and there is debate as to whether space is curved.

There exists an international standard way to do this ( the ISO week ).

There exists a Permanent Representative of Croatia to the United Nations.

There is ample literary evidence to further substantiate that " Chicano " is a self-declaration, as a large body of Chicano literature exists with publication dates far predating the 1950s.

There also exists multistage sampling, where more than two steps are taken in selecting clusters from clusters.

* There exists a computable function which, given any positive rational error bound, produces a rational number r such that

There are a large number of interesting tasks, and while it is not known if a polynomial-time solution exists for any of them, it is known that if such a solution exists for any of them, one exists for all of them.

There exists a misconception concerning the power of the pope in the Middle Ages.

There also exists a small number of analogue-only cable networks such as the Longford service Crossan Cable.

: The categorical proposition " Some man is sick " has the same meaning as the existential proposition " A sick man exists " or " There is a sick man ".

Thus, in the sentence " There exists a man ", the term " man " is asserted to be part of existence.

But we can also assert, " There exists a triangle.

There is still the position, based on the philosophical question of personal identity, termed open individualism, and in some ways similar to the old belief of monopsychism, that concludes that individual existence is illusory, and our consciousness continues existing after death in other conscious beings.

There is some controversy over the identity of the disease, but in its virulent form, after the Great Plague of Marseille in 1720 – 1722, the Great Plague of 1738 ( which hit Eastern Europe ), and the Russian plague of 1770-1772, it seems to have gradually disappeared from Europe.

There is continuing discussion over the identity of Gog and Magog.

There was speculation about the identity of Currer Bell and whether the author was male or female and it heightened on the publication of novels by Charlotte's sisters: Emily's Wuthering Heights by " Ellis Bell " and Anne's Agnes Grey by " Acton Bell ".

* There exist integers x and y such that ax + by = 1 ( see Bézout's identity ).

There is a preference for endogamous marriages based on the clan-oriented nature of the society, which values and actively seeks similarities in social group identity based on several factors, including religious, sectarian, ethnic, and tribal / clan affiliation.

: There exists an element of F, called the additive identity element and denoted by 0, such that for all a in F, a + 0 = a.

There are several causes of collective guilt: salient group identity, collective responsibility, and perception of unjust in-group actions.

There is much debate about the identity of the Preacher ; many believe it is Solomon.

There have been claims that Jarrah was not a hijacker or that he was not present on the plane and his identity was stolen.

There is great confusion about the identity of Margaret's parents, although Tubman indicated they were free blacks.

There is a useful identity involving Bessel functions

There are also rare ones whose true identities are common public knowledge, even with a costumed identity ( e. g. Iron Man and Captain America ).

There has been controversy about the real identity of the architect of the Leaning Tower of Pisa.

There is no indication that social environment after birth has an effect on gender identity or sexual orientation.

There are numerous theories concerning when the text was completed, and concerning the identity of the author or authors, but archeological recoveries have proven that the Art of War had roughly achieved its current form by at least the early Han dynasty ( 206 BC – AD 220 ).

There is no way to ensure that a particular remailer server will never cause problems for its users ( loss of identity or confidentiality ).

There are a number of derivatives of the terms in use, including cis male for a male with a masculine gender identity, cis female for a female with a feminine gender identity, and cissexism.

There is still considerable debate ongoing regarding the identity of these membrane maintenance proteins in the red cell membrane.

There ’ s enough uncertainty to know it ’ s Dick ; questions of identity keep popping up, and the good guys / bad guys line is pretty well obliterated by the end.

There has also been interest in the identity of the Pharaoh Smenkhkare, who was the immediate successor to Akhenaten.

There has been some speculation that the identity of this officer was Oleg Penkovsky, however during his radio interview to Russian station Echo of Moscow Vladimir Rezun ( alias Victor Suvorov ) denied this, saying " I never mentioned it was Penkovsky " No executed GRU traitors ( Penkovsky aside ) are known matching scant Suvorov's description given in " Aquarium "

There also exists a certain fear over the perceived loss of French identity and culture in the European system and under American " cultural hegemony ".