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Mirrors > Home > ILE Home > Th. List > 19.32dc | Unicode version |
Description: Theorem 19.32 of [Margaris] p. 90, where ![]() |
Ref | Expression |
---|---|
19.32dc.1 |
![]() ![]() ![]() ![]() |
Ref | Expression |
---|---|
19.32dc |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 19.32dc.1 |
. . . . 5
![]() ![]() ![]() ![]() | |
2 | 1 | nfn 1548 |
. . . 4
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3 | 2 | 19.21 1475 |
. . 3
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4 | 3 | a1i 9 |
. 2
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5 | 1 | nfdc 1549 |
. . 3
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6 | dfordc 791 |
. . 3
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7 | 5, 6 | albid 1506 |
. 2
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8 | dfordc 791 |
. 2
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9 | 4, 7, 8 | 3bitr4d 209 |
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 99 ax-ia2 100 ax-ia3 101 ax-in1 544 ax-in2 545 ax-io 630 ax-5 1336 ax-gen 1338 ax-ie2 1383 ax-4 1400 ax-ial 1427 ax-i5r 1428 |
This theorem depends on definitions: df-bi 110 df-dc 743 df-tru 1246 df-fal 1249 df-nf 1350 |
This theorem is referenced by: (None) |
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