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Mirrors > Home > QLE Home > Th. List > dp41lemb | Unicode version |
Description: Part of proof (4)=>(1) in Day/Pickering 1982. |
Ref | Expression |
---|---|
dp41lem.1 | c0 a1 a2 b1 b2 |
dp41lem.2 | c1 a0 a2 b0 b2 |
dp41lem.3 | c2 a0 a1 b0 b1 |
dp41lem.4 | a0 b0 a1 b1 a2 b2 |
dp41lem.5 | p2 a0 b0 a1 b1 |
dp41lem.6 | p2 a2 b2 |
Ref | Expression |
---|---|
dp41lemb | c2 c2 a0 b0 b1 a0 a1 b1 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | dp41lem.3 | . . . . . 6 c2 a0 a1 b0 b1 | |
2 | ancom 74 | . . . . . 6 a0 a1 b0 b1 b0 b1 a0 a1 | |
3 | 1, 2 | tr 62 | . . . . 5 c2 b0 b1 a0 a1 |
4 | leor 159 | . . . . . . 7 b0 a0 b0 | |
5 | 4 | leror 152 | . . . . . 6 b0 b1 a0 b0 b1 |
6 | leo 158 | . . . . . 6 a0 a1 a0 a1 b1 | |
7 | 5, 6 | le2an 169 | . . . . 5 b0 b1 a0 a1 a0 b0 b1 a0 a1 b1 |
8 | 3, 7 | bltr 138 | . . . 4 c2 a0 b0 b1 a0 a1 b1 |
9 | 8 | df2le2 136 | . . 3 c2 a0 b0 b1 a0 a1 b1 c2 |
10 | 9 | cm 61 | . 2 c2 c2 a0 b0 b1 a0 a1 b1 |
11 | anass 76 | . . 3 c2 a0 b0 b1 a0 a1 b1 c2 a0 b0 b1 a0 a1 b1 | |
12 | 11 | cm 61 | . 2 c2 a0 b0 b1 a0 a1 b1 c2 a0 b0 b1 a0 a1 b1 |
13 | 10, 12 | tr 62 | 1 c2 c2 a0 b0 b1 a0 a1 b1 |
Colors of variables: term |
Syntax hints: wb 1 wle 2 wo 6 wa 7 |
This theorem was proved from axioms: ax-a1 30 ax-a2 31 ax-a3 32 ax-a5 34 ax-r1 35 ax-r2 36 ax-r4 37 ax-r5 38 |
This theorem depends on definitions: df-a 40 df-t 41 df-f 42 df-le1 130 df-le2 131 |
This theorem is referenced by: dp41lemm 1192 |
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