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Mirrors > Home > NFE Home > Th. List > ord | Unicode version |
Description: Deduce implication from disjunction. (Contributed by NM, 18-May-1994.) |
Ref | Expression |
---|---|
ord.1 |
Ref | Expression |
---|---|
ord |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ord.1 | . 2 | |
2 | df-or 359 | . 2 | |
3 | 1, 2 | sylib 188 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wn 3 wi 4 wo 357 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 |
This theorem depends on definitions: df-bi 177 df-or 359 |
This theorem is referenced by: orcanai 879 oplem1 930 ecase23d 1285 19.33b 1608 eqsn 3867 nnsucelr 4428 lenltfin 4469 vfin1cltv 4547 phi011lem1 4598 foconst 5280 nceleq 6149 addceq0 6219 ncslemuc 6255 nchoicelem8 6296 |
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