Redirected from Cobitidae
Loaches are a family (Cobitidae) of small bottom-dwelling fish. Many of the 160 species are brightly-colored and popular for freshwater aqaria.
(Acanthocobitis[?], Gastromyzon[?] to Balitoridae, river loaches[?])
... → x is not in A
Or, to say that any natural number is equal to itself, write
∀x, x ∈ N → x = x
Indeed, these formulations may be used as ...
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