not diffeomorphic to

URI: https://gptkb.org/prop/not_diffeomorphic_to
3 triples
GPTKB property
Random triples
Subject Object
gptkb:exotic_7-spheres gptkb:standard_7-sphere
gptkb:exotic_7-sphere gptkb:standard_7-sphere
gptkb:E_8_manifold any smooth 4-manifold