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Mathbox for David A. Wheeler |
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Mirrors > Home > ILE Home > Th. List > Mathboxes > alsconv | Unicode version |
Description: There is an equivalence between the two "all some" forms. (Contributed by David A. Wheeler, 22-Oct-2018.) |
Ref | Expression |
---|---|
alsconv |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-ral 2380 |
. . 3
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2 | 1 | anbi1i 449 |
. 2
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3 | df-alsc 12827 |
. 2
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4 | df-alsi 12826 |
. 2
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5 | 2, 3, 4 | 3bitr4ri 212 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 |
This theorem depends on definitions: df-bi 116 df-ral 2380 df-alsi 12826 df-alsc 12827 |
This theorem is referenced by: (None) |
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