diagrams/ncat/zz3.pdf
author Kevin Walker <kevin@canyon23.net>
Sat, 25 Jun 2011 18:14:37 -0700
changeset 822 9e695fc9b13c
parent 375 faac9ca8f092
child 928 54503d88c969
permissions -rw-r--r--
add remark about a-inf axiom implying isotopy invariance

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