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References to 'irredundant'
1. Banach limit by stevecheng
2. dihedral group properties by Algeboy
3. f-vector by mps
4. finite projective plane by Mathprof
5. generalized toposes with many-valued logic subobject classifiers by bci1
6. incidence geometry by CWoo
7. Kurosh-Ore theorem by CWoo
8. logical connective by mps
9. mathematical platonism by gribskoff
10. Nicomachus' theorem by PrimeFan
11. principal components analysis by akrowne
12. proof of Nakayama's lemma by mclase
13. propositional logic by Henry
14. superfluity of the third defining property for finite consequence operator by rspuzio