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Mirrors > Home > NFE Home > Th. List > equsalhwOLD | Unicode version |
Description: Obsolete proof of equsalhw 1838 as of 28-Dec-2017. (Contributed by NM, 29-Nov-2015.) (Proof modification is discouraged.) (New usage is discouraged.) |
Ref | Expression |
---|---|
equsalhwOLD.1 |
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equsalhwOLD.2 |
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Ref | Expression |
---|---|
equsalhwOLD |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | equsalhwOLD.2 |
. . . . 5
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2 | sp 1747 |
. . . . . 6
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3 | equsalhwOLD.1 |
. . . . . 6
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4 | 2, 3 | impbii 180 |
. . . . 5
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5 | 1, 4 | syl6bbr 254 |
. . . 4
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6 | 5 | pm5.74i 236 |
. . 3
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7 | 6 | albii 1566 |
. 2
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8 | 3 | a1d 22 |
. . . 4
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9 | 3, 8 | alrimih 1565 |
. . 3
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10 | ax9v 1655 |
. . . . 5
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11 | con3 126 |
. . . . . 6
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12 | 11 | al2imi 1561 |
. . . . 5
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13 | 10, 12 | mtoi 169 |
. . . 4
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14 | ax6o 1750 |
. . . 4
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15 | 13, 14 | syl 15 |
. . 3
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16 | 9, 15 | impbii 180 |
. 2
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17 | 7, 16 | bitr4i 243 |
1
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Colors of variables: wff setvar class |
Syntax hints: ![]() ![]() ![]() ![]() |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1546 ax-5 1557 ax-17 1616 ax-9 1654 ax-8 1675 ax-6 1729 ax-11 1746 |
This theorem depends on definitions: df-bi 177 df-ex 1542 |
This theorem is referenced by: (None) |
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