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say "\c[KELVIN SIGN]".uniname;
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# => LATIN CAPITAL LETTER K
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my $kelvin = "\c[KELVIN SIGN]";
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my $k = "\c[LATIN CAPITAL LETTER K]";
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say ($kelvin eq $k); # True, lexically equal
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say ($kelvin eqv $k); # True, generically equal
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say ($kelvin === $k); # True, identical objects
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