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Mirrors > Home > QLE Home > Th. List > i5lei1 | Unicode version |
Description: Relevance implication is l.e. Sasaki implication. |
Ref | Expression |
---|---|
i5lei1 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ax-a3 32 | . . . 4 | |
2 | ax-a2 31 | . . . 4 | |
3 | 1, 2 | ax-r2 36 | . . 3 |
4 | lea 160 | . . . . 5 | |
5 | lea 160 | . . . . 5 | |
6 | 4, 5 | lel2or 170 | . . . 4 |
7 | 6 | leror 152 | . . 3 |
8 | 3, 7 | bltr 138 | . 2 |
9 | df-i5 48 | . 2 | |
10 | df-i1 44 | . 2 | |
11 | 8, 9, 10 | le3tr1 140 | 1 |
Colors of variables: term |
Syntax hints: wle 2 wn 4 wo 6 wa 7 wi1 12 wi5 16 |
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-i1 44 df-i5 48 df-le1 130 df-le2 131 |
This theorem is referenced by: oago3.21x 890 |
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