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Mirrors > Home > ILE Home > Th. List > stoic4b | Unicode version |
Description: Stoic logic Thema 4
version b.
This is version b, which is with the phrase "or both". See stoic4a 1409 for more information. (Contributed by David A. Wheeler, 17-Feb-2019.) |
Ref | Expression |
---|---|
stoic4b.1 |
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stoic4b.2 |
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Ref | Expression |
---|---|
stoic4b |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | stoic4b.1 |
. . 3
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2 | 1 | 3adant3 1002 |
. 2
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3 | simp1 982 |
. 2
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4 | simp2 983 |
. 2
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5 | simp3 984 |
. 2
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6 | stoic4b.2 |
. 2
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7 | 2, 3, 4, 5, 6 | syl31anc 1220 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() ![]() ![]() |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 |
This theorem depends on definitions: df-bi 116 df-3an 965 |
This theorem is referenced by: (None) |
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