Combining Philosophers

Ideas for Anaxarchus, Peter Smith and Gary Gutting

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3 ideas

5. Theory of Logic / J. Model Theory in Logic / 2. Isomorphisms
A 'surjective' ('onto') function creates every element of the output set [Smith,P]
A 'bijective' function has one-to-one correspondence in both directions [Smith,P]
An 'injective' ('one-to-one') function creates a distinct output element from each original [Smith,P]