Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > ILE Home > Th. List > f1orel | Unicode version |
Description: A one-to-one onto mapping is a relation. (Contributed by NM, 13-Dec-2003.) |
Ref | Expression |
---|---|
f1orel |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | f1ofun 5128 | . 2 | |
2 | funrel 4919 | . 2 | |
3 | 1, 2 | syl 14 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wrel 4350 wfun 4896 wf1o 4901 |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 99 |
This theorem depends on definitions: df-bi 110 df-fun 4904 df-fn 4905 df-f 4906 df-f1 4907 df-f1o 4909 |
This theorem is referenced by: f1ococnv1 5155 isores1 5454 dif1en 6337 |
Copyright terms: Public domain | W3C validator |