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Mirrors > Home > ILE Home > Th. List > Mathboxes > bdcdif | Unicode version |
Description: The difference of two bounded classes is bounded. (Contributed by BJ, 3-Oct-2019.) |
Ref | Expression |
---|---|
bdcdif.1 |
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bdcdif.2 |
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Ref | Expression |
---|---|
bdcdif |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | bdcdif.1 |
. . . . 5
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2 | 1 | bdeli 13215 |
. . . 4
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3 | bdcdif.2 |
. . . . . 6
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4 | 3 | bdeli 13215 |
. . . . 5
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5 | 4 | ax-bdn 13186 |
. . . 4
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6 | 2, 5 | ax-bdan 13184 |
. . 3
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7 | 6 | bdcab 13218 |
. 2
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8 | df-dif 3078 |
. 2
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9 | 7, 8 | bdceqir 13213 |
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 ax-5 1424 ax-gen 1426 ax-ie1 1470 ax-ie2 1471 ax-4 1488 ax-17 1507 ax-ial 1515 ax-ext 2122 ax-bd0 13182 ax-bdan 13184 ax-bdn 13186 ax-bdsb 13191 |
This theorem depends on definitions: df-bi 116 df-clab 2127 df-cleq 2133 df-clel 2136 df-dif 3078 df-bdc 13210 |
This theorem is referenced by: bdcnulALT 13235 |
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