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Mirrors > Home > QLE Home > Th. List > oa4dcom | Unicode version |
Description: Lemma commuting terms. |
Ref | Expression |
---|---|
oa4dcom |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ancom 74 | . . . 4 | |
2 | ancom 74 | . . . 4 | |
3 | 1, 2 | 2or 72 | . . 3 |
4 | ancom 74 | . . 3 | |
5 | 3, 4 | 2or 72 | . 2 |
6 | 5 | lan 77 | 1 |
Colors of variables: term |
Syntax hints: wb 1 wo 6 wa 7 wi1 12 |
This theorem was proved from axioms: ax-a2 31 ax-r1 35 ax-r2 36 ax-r4 37 ax-r5 38 |
This theorem depends on definitions: df-a 40 |
This theorem is referenced by: axoa4d 1038 |
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