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Mirrors > Home > ILE Home > Th. List > fpr | Unicode version |
Description: A function with a domain of two elements. (Contributed by Jeff Madsen, 20-Jun-2010.) (Proof shortened by Andrew Salmon, 22-Oct-2011.) |
Ref | Expression |
---|---|
fpr.1 |
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fpr.2 |
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fpr.3 |
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fpr.4 |
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Ref | Expression |
---|---|
fpr |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | fpr.1 |
. . . . . 6
![]() ![]() ![]() ![]() | |
2 | fpr.2 |
. . . . . 6
![]() ![]() ![]() ![]() | |
3 | fpr.3 |
. . . . . 6
![]() ![]() ![]() ![]() | |
4 | fpr.4 |
. . . . . 6
![]() ![]() ![]() ![]() | |
5 | 1, 2, 3, 4 | funpr 4976 |
. . . . 5
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6 | 3, 4 | dmprop 4819 |
. . . . 5
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7 | 5, 6 | jctir 306 |
. . . 4
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8 | df-fn 4929 |
. . . 4
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9 | 7, 8 | sylibr 132 |
. . 3
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10 | df-pr 3407 |
. . . . . 6
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11 | 10 | rneqi 4584 |
. . . . 5
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12 | rnun 4756 |
. . . . 5
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13 | 1 | rnsnop 4825 |
. . . . . . 7
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14 | 2 | rnsnop 4825 |
. . . . . . 7
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15 | 13, 14 | uneq12i 3125 |
. . . . . 6
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16 | df-pr 3407 |
. . . . . 6
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17 | 15, 16 | eqtr4i 2105 |
. . . . 5
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18 | 11, 12, 17 | 3eqtri 2106 |
. . . 4
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19 | 18 | eqimssi 3054 |
. . 3
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20 | 9, 19 | jctir 306 |
. 2
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21 | df-f 4930 |
. 2
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22 | 20, 21 | sylibr 132 |
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 104 ax-ia2 105 ax-ia3 106 ax-in1 577 ax-in2 578 ax-io 663 ax-5 1377 ax-7 1378 ax-gen 1379 ax-ie1 1423 ax-ie2 1424 ax-8 1436 ax-10 1437 ax-11 1438 ax-i12 1439 ax-bndl 1440 ax-4 1441 ax-14 1446 ax-17 1460 ax-i9 1464 ax-ial 1468 ax-i5r 1469 ax-ext 2064 ax-sep 3898 ax-pow 3950 ax-pr 3966 |
This theorem depends on definitions: df-bi 115 df-3an 922 df-tru 1288 df-fal 1291 df-nf 1391 df-sb 1687 df-eu 1945 df-mo 1946 df-clab 2069 df-cleq 2075 df-clel 2078 df-nfc 2209 df-ne 2247 df-ral 2354 df-rex 2355 df-v 2604 df-dif 2976 df-un 2978 df-in 2980 df-ss 2987 df-nul 3253 df-pw 3386 df-sn 3406 df-pr 3407 df-op 3409 df-br 3788 df-opab 3842 df-id 4050 df-xp 4371 df-rel 4372 df-cnv 4373 df-co 4374 df-dm 4375 df-rn 4376 df-fun 4928 df-fn 4929 df-f 4930 |
This theorem is referenced by: (None) |
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