A pro-sentence is a sentence where the subject pronoun has been dropped and therefore the sentence has a null subject.

Overview

Languages differ within this parameter, some languages such as

Italian Italian(s) may refer to: * Anything of, from, or related to the people of Italy over the centuries ** Italians, a Romance ethnic group related to or simply a citizen of the Italian Republic or Italian Kingdom ** Italian language, a Romance languag ...

and

Spanish Spanish might refer to: * Items from or related to Spain: **Spaniards are a nation and ethnic group indigenous to Spain **Spanish language, spoken in Spain and many countries in the Americas **Spanish cuisine **Spanish history **Spanish culture ...

have constant

pro-drop A pro-drop language (from "pronoun-dropping") is a language in which certain classes of pronouns may be omitted when they can be pragmatically or grammatically inferable. The precise conditions vary from language to language, and can be quite ...

, Finnish and

Hebrew Hebrew (; ''ʿÎbrit'') is a Northwest Semitic languages, Northwest Semitic language within the Afroasiatic languages, Afroasiatic language family. A regional dialect of the Canaanite languages, it was natively spoken by the Israelites and ...

for example are partial pro-drop languages and

Japanese Japanese may refer to: * Something from or related to Japan, an island country in East Asia * Japanese language, spoken mainly in Japan * Japanese people, the ethnic group that identifies with Japan through ancestry or culture ** Japanese diaspor ...

and

Tamil Tamil may refer to: People, culture and language * Tamils, an ethno-linguistic group native to India, Sri Lanka, and some other parts of Asia **Sri Lankan Tamils, Tamil people native to Sri Lanka ** Myanmar or Burmese Tamils, Tamil people of Ind ...

fall into the category of discourse or radical pro-drop languages. There are also languages such as English, German and Swedish that only allow pro-drop within very strict stylistic conditions. A pro-sentence is a kind of

pro-form In linguistics, a pro-form is a type of function word or expression (linguistics) that stands in for (expresses the same content as) another word, phrase, clause or sentence where the meaning is recoverable from the context. They are used eithe ...

and is therefore anaphoric. In

English English usually refers to: * English language * English people English may also refer to: Culture, language and peoples * ''English'', an adjective for something of, from, or related to England * ''English'', an Amish ter ...

, ''yes'', ''no'' and ''

okay ''OK'' (), with spelling variations including ''okay'', ''okeh'', ''O.K.'' and many others, is an English word (originating in American English) denoting approval, acceptance, agreement, assent, acknowledgment, or a sign of indifference. ''O ...

'' are common pro-sentences. In response to the question "Does Mars have two moons?", the sentence "Yes" can be understood to abbreviate "Mars does have two moons." Pro-sentences are sometimes seen as grammatical

interjection An interjection is a word or expression that occurs as an utterance on its own and expresses a spontaneous feeling, situation or reaction. It is a diverse category, with many different types, such as exclamations ''(ouch!'', ''wow!''), curses (''da ...

s, since they are capable of very limited

syntactical In linguistics, syntax ( ) is the study of how words and morphemes combine to form larger units such as phrases and sentences. Central concerns of syntax include word order, grammatical relations, hierarchical sentence structure (constituency) ...

relations. But they can also be classified as a distinct

part of speech In grammar, a part of speech or part-of-speech ( abbreviated as POS or PoS, also known as word class or grammatical category) is a category of words (or, more generally, of lexical items) that have similar grammatical properties. Words that are ...

, given that (other) interjections have meanings of their own and are often described as expressions of

feeling According to the '' APA Dictionary of Psychology'', a feeling is "a self-contained phenomenal experience"; feelings are "subjective, evaluative, and independent of the sensations, thoughts, or images evoking them". The term ''feeling'' is closel ...

s or

emotion Emotions are physical and mental states brought on by neurophysiology, neurophysiological changes, variously associated with thoughts, feelings, behavior, behavioral responses, and a degree of pleasure or suffering, displeasure. There is ...

Yes and no

In some languages, the equivalents to ''yes'' and ''no'' may substitute not only a whole sentence, but also a part of it, either the

subject Subject ( "lying beneath") may refer to: Philosophy *''Hypokeimenon'', or ''subiectum'', in metaphysics, the "internal", non-objective being of a thing **Subject (philosophy), a being that has subjective experiences, subjective consciousness, or ...

and the

verb A verb is a word that generally conveys an action (''bring'', ''read'', ''walk'', ''run'', ''learn''), an occurrence (''happen'', ''become''), or a state of being (''be'', ''exist'', ''stand''). In the usual description of English, the basic f ...

, or the verb and a

complement Complement may refer to: The arts * Complement (music), an interval that, when added to another, spans an octave ** Aggregate complementation, the separation of pitch-class collections into complementary sets * Complementary color, in the visu ...

, and can also constitute a subordinate

clause In language, a clause is a Constituent (linguistics), constituent or Phrase (grammar), phrase that comprises a semantic predicand (expressed or not) and a semantic Predicate (grammar), predicate. A typical clause consists of a subject (grammar), ...

. The Portuguese word '' sim'' (''yes'') gives a good example: :Q: :A: (literally, that yes) : : (literally, John yes). In some languages, such as English, ''yes'' rebuts a negative question, whereas ''no'' affirms it. However, in

, the equivalents of ''no'' () rebut a negative question, whereas the equivalents of ''yes'' () affirm it. :Q: :A: , literally Some languages have a specific word that rebuts a negative question.

German German(s) may refer to: * Germany, the country of the Germans and German things **Germania (Roman era) * Germans, citizens of Germany, people of German ancestry, or native speakers of the German language ** For citizenship in Germany, see also Ge ...

has ,

French French may refer to: * Something of, from, or related to France ** French language, which originated in France ** French people, a nation and ethnic group ** French cuisine, cooking traditions and practices Arts and media * The French (band), ...

has , Norwegian has , Danish has ,

Swedish Swedish or ' may refer to: Anything from or related to Sweden, a country in Northern Europe. Or, specifically: * Swedish language, a North Germanic language spoken primarily in Sweden and Finland ** Swedish alphabet, the official alphabet used by ...

has , and Hungarian has . The English words "yes" and "no" were originally only used to respond to negative questions, while "yea" and "nay" were the proper responses to affirmative questions; this distinction was lost at some time in Early Modern English. :Q: :A:

In philosophy

The prosentential

theory of truth Truth or verity is the property of being in accord with fact or reality.Merriam-Webster's Online Dictionarytruth, 2005 In everyday language, it is typically ascribed to things that aim to represent reality or otherwise correspond to it, such as ...

developed by Dorothy Grover,

Nuel Belnap Nuel Dinsmore Belnap Jr. (; May 1, 1930 – June 12, 2024) was an American logician and philosopher who has made contributions to the philosophy of logic, temporal logic, and structural proof theory. He taught at the University of Pittsburgh ...

, and Joseph Camp, and defended more recently by

Robert Brandom Robert Boyce Brandom (; born March 13, 1950) is an American philosopher who teaches at the University of Pittsburgh. He works primarily in philosophy of language, philosophy of mind and philosophical logic, and his academic output manifests both s ...

, holds that sentences like ''"p" is true'' and ''It is true that p'' should not be understood as ascribing properties to the sentence "p", but as a pro-sentence whose content is the same as that of "p." Brandom calls " . . .is true" a pro-sentence-forming operator.Brandom, ''Making it Explicit'', 1994.

References

* Holmberg, A. 2001. 'The syntax of yes and no in Finnish.' ''Studia Linguistica'' 55: 141- 174. {{Lexical categories, state=collapsed Parts of speech

Overview

Yes and no

In philosophy

See also

References