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Mirrors > Home > ILE Home > Th. List > wefr | Unicode version |
Description: A well-ordering is well-founded. (Contributed by NM, 22-Apr-1994.) |
Ref | Expression |
---|---|
wefr |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-wetr 4216 | . 2 | |
2 | 1 | simplbi 270 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 103 wral 2390 class class class wbr 3895 wfr 4210 wwe 4212 |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 105 |
This theorem depends on definitions: df-bi 116 df-wetr 4216 |
This theorem is referenced by: wepo 4241 wetriext 4451 |
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