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  2. Relation (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Relation_(mathematics)

    In mathematics, a relation denotes some kind of relationship between two objects in a set, which may or may not hold. [1] As an example, " is less than " is a relation on the set of natural numbers ; it holds, for instance, between the values 1 and 3 (denoted as 1 < 3 ), and likewise between 3 and 4 (denoted as 3 < 4 ), but not between the ...

  3. Early warning system - Wikipedia

    en.wikipedia.org/wiki/Early_warning_system

    An early warning system is a warning system that can be implemented as a chain of information communication systems and comprises sensors, event detection and decision subsystems for early identification of hazards. They work together to forecast and signal disturbances that adversely affect the stability of the physical world, providing time ...

  4. Dating - Wikipedia

    en.wikipedia.org/wiki/Dating

    Dating is being bypassed and is seen as archaic, and relationships are sometimes seen as "greedy" by taking time away from other activities, [24] although exclusive relationships form later. [25] Some college newspapers have decried the lack of dating on campuses after a 2001 study was published, and conservative groups have promoted ...

  5. List of medical mnemonics - Wikipedia

    en.wikipedia.org/wiki/List_of_medical_mnemonics

    This is a list of mnemonics used in medicine and medical science, categorized and alphabetized. A mnemonic is any technique that assists the human memory with information retention or retrieval by making abstract or impersonal information more accessible and meaningful, and therefore easier to remember; many of them are acronyms or initialisms which reduce a lengthy set of terms to a single ...

  6. Romantic friendship - Wikipedia

    en.wikipedia.org/wiki/Romantic_friendship

    The study of historical romantic friendship is difficult because the primary source material consists of writing about love relationships, which typically took the form of love letters, poems, or philosophical essays rather than objective studies [4] and seldom explicitly stated the sexual or nonsexual nature of relationships.

  7. Sign relation - Wikipedia

    en.wikipedia.org/wiki/Sign_relation

    In the general discussion of diverse theories of signs, the question frequently arises whether signhood is an absolute, essential, indelible, or ontological property of a thing, or whether it is a relational, interpretive, and mutable role that a thing can be said to have only within a particular context of relationships.

  8. Rebound (dating) - Wikipedia

    en.wikipedia.org/wiki/Rebound_(dating)

    The concept of a 'rebound' relationship is rooted in the idea of entering into a new romantic relationship before fully recovering from a previous breakup. This pattern can be common in those who are still healing from the emotional wounds of a past relationship and may be using the new relationship as a way to distract from the pain or fill an ...

  9. Intimate relationship - Wikipedia

    en.wikipedia.org/wiki/Intimate_relationship

    An intimate relationship is an interpersonal relationship that involves emotional or physical closeness between people and may include sexual intimacy and feelings of romance or love. [1] Intimate relationships are interdependent, and the members of the relationship mutually influence each other. [2]