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jeremy22511
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Homework Statement
1. Is there any difference between the following 2 signs?
<=> (for biconditional) and 三(the equivalence sign)
2. When we say 'P is defined as Q), do we mean P三Q?
Thanks
J
Homework Equations
The Attempt at a Solution
It seems that for 2 propositions, P & Q:
(i) P三Q when 'P and Q have the same kinds and numbers of components' and 'their truth values are equivalent'
(ii) P <=> Q is expressing the same thing as above.
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