unlesss

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Precisely unless

G ≥ H unlesss H ≥ GR or HL ≥ G for some GR ∈ GR or some HL ∈ HL. ¶ (Analogous to “iff”, the term “unlesss” means “unless and only unless”.).

unlesss

    Этимология

    () Attributed to John Horton Conway. From unless, by analogy with the formation of iff from if.
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