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Mirrors > Home > MPE Home > Th. List > stoic2b | Structured version Visualization version Unicode version |
Description: Stoic logic Thema 2 version b. See stoic2a 1699. Version b is with the phrase "or both". We already have this rule as mpd3an3 1425, so here we prove the equivalence and discourage its use. (New usage is discouraged.) (Contributed by David A. Wheeler, 17-Feb-2019.) |
Ref | Expression |
---|---|
stoic2b.1 | |
stoic2b.2 |
Ref | Expression |
---|---|
stoic2b |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | stoic2b.1 | . 2 | |
2 | stoic2b.2 | . 2 | |
3 | 1, 2 | mpd3an3 1425 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wi 4 wa 384 w3a 1037 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 |
This theorem depends on definitions: df-bi 197 df-an 386 df-3an 1039 |
This theorem is referenced by: (None) |
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