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**Conversation** is a form of interactive, spontaneous communication between two or more people. Typically it occurs in spoken communication, as written exchanges are usually not referred to as conversations. The development of conversational skills and etiquette is an important part of socialization. The development of conversational skills in a new language is a frequent focus of language teaching and learning.

Conversation analysis is a branch of sociology which studies the structure and organization of human interaction, with a more specific focus on conversational interaction.

No generally accepted definition of conversation exists, beyond the fact that a conversation involves at least two people talking together. Consequently, the term is often defined by what it is not. A ritualized exchange such a mutual greeting is not a conversation, and an interaction that includes a marked status differential (such as a boss giving orders) is also not a conversation. An interaction with a tightly focused topic or purpose is also generally not considered a conversation. Summarizing these properties, one authority writes that "Conversation is the kind of speech that happens informally, symmetrically, and for the purposes of establishing and maintaining social ties."

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* Conversations* is an EP released by Irish band Time Is A Thief. The EP was recorded and mixed by Laurence White at Roughcut Studios in Bandon, County Cork, Ireland.

All songs written and composed by Time Is A Thief.

This page contains text from Wikipedia, the Free Encyclopedia - https://wn.com/Conversations_(EP)

**Conversation** is communication among people.

**Conversation**(**s**) or **The Conversation** may also refer to:

In **music**:

This page contains text from Wikipedia, the Free Encyclopedia - https://wn.com/Conversation_(disambiguation)

**Join** may refer to:

- Join (mathematics), a least upper bound of set orders in lattice theory
- Join (topology), an operation combining two topological spaces
- Join (relational algebra), a type of binary operator
- Join (sigma algebra), a refinement of sigma algebras

This page contains text from Wikipedia, the Free Encyclopedia - https://wn.com/Join

In mathematics, a **lattice** is one of the fundamental algebraic structures used in abstract algebra. It consists of a partially ordered set in which every two elements have a unique supremum (also called a least upper bound or join) and a unique infimum (also called a greatest lower bound or meet). An example is given by the natural numbers, partially ordered by divisibility, for which the unique supremum is the least common multiple and the unique infimum is the greatest common divisor.

Lattices can also be characterized as algebraic structures satisfying certain axiomatic identities. Since the two definitions are equivalent, lattice theory draws on both order theory and universal algebra. Semilattices include lattices, which in turn include Heyting and Boolean algebras. These "lattice-like" structures all admit order-theoretic as well as algebraic descriptions.

If (*L*, ≤) is a partially ordered set (poset), and *S*⊆*L* is an arbitrary subset, then an element *u*∈*L* is said to be an **upper bound** of *S* if
*s*≤*u* for each *s*∈*S*. A set may have many upper bounds, or none at all. An upper bound *u* of *S* is said to be its **least upper bound**, or **join**, or **supremum**, if *u*≤*x* for each upper bound *x* of *S*. A set need not have a least upper bound, but it cannot have more than one. Dually, *l*∈*L* is said to be a **lower bound** of *S* if *l*≤*s* for each *s*∈*S*. A lower bound *l* of *S* is said to be its **greatest lower bound**, or **meet**, or **infimum**, if *x*≤*l* for each lower bound *x* of *S*. A set may have many lower bounds, or none at all, but can have at most one greatest lower bound.

This page contains text from Wikipedia, the Free Encyclopedia - https://wn.com/Lattice_(order)

In topology, a field of mathematics, the **join** of two topological spaces *A* and *B*, often denoted by , is defined to be the quotient space

where *I* is the interval [0, 1] and *R* is the equivalence relation generated by

At the endpoints, this collapses to and to .

Intuitively, is formed by taking the disjoint union of the two spaces and attaching a line segment joining every point in *A* to every point in *B*.

is homeomorphic to the reduced suspension

of the smash product. Consequently, since is contractible, there is a homotopy equivalence

This page contains text from Wikipedia, the Free Encyclopedia - https://wn.com/Join_(topology)

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