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Mirrors > Home > QLE Home > Th. List > negant3 | Unicode version |
Description: Negated antecedent identity. |
Ref | Expression |
---|---|
negant.1 |
Ref | Expression |
---|---|
negant3 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | negant.1 | . . . 4 | |
2 | 1 | sac 835 | . . 3 |
3 | 2 | negantlem9 859 | . 2 |
4 | 2 | ax-r1 35 | . . 3 |
5 | 4 | negantlem9 859 | . 2 |
6 | 3, 5 | lebi 145 | 1 |
Colors of variables: term |
Syntax hints: wb 1 wn 4 wi1 12 wi3 14 |
This theorem was proved from axioms: ax-a1 30 ax-a2 31 ax-a3 32 ax-a4 33 ax-a5 34 ax-r1 35 ax-r2 36 ax-r4 37 ax-r5 38 ax-r3 439 |
This theorem depends on definitions: df-b 39 df-a 40 df-t 41 df-f 42 df-i1 44 df-i3 46 df-le1 130 df-le2 131 df-c1 132 df-c2 133 |
This theorem is referenced by: (None) |
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