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Mirrors > Home > QLE Home > Th. List > oa4cl | Unicode version |
Description: 4-variable OA closed equational form) |
Ref | Expression |
---|---|
oa4cl |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | leor 159 | . . 3 | |
2 | oran2 92 | . . 3 | |
3 | 1, 2 | lbtr 139 | . 2 |
4 | leor 159 | . . 3 | |
5 | oran2 92 | . . 3 | |
6 | 4, 5 | lbtr 139 | . 2 |
7 | 3, 6 | ax-oal4 1026 | 1 |
Colors of variables: term |
Syntax hints: wle 2 wn 4 wo 6 wa 7 |
This theorem was proved from axioms: ax-a1 30 ax-a2 31 ax-a5 34 ax-r1 35 ax-r2 36 ax-r4 37 ax-r5 38 ax-oal4 1026 |
This theorem depends on definitions: df-a 40 df-le1 130 df-le2 131 |
This theorem is referenced by: (None) |
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