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| Description: A restricted identity function is a continuous function. (Contributed by FL, 31-Dec-2006.) |
| Ref | Expression |
|---|---|
| cnpimaex.1 |
|
| Ref | Expression |
|---|---|
| idcn |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | rnresi 3418 |
. . . . . . 7
| |
| 2 | 1 | eqimssi 2111 |
. . . . . 6
|
| 3 | 2 | a1i 8 |
. . . . 5
|
| 4 | fnresi 3603 |
. . . . 5
| |
| 5 | 3, 4 | jctil 292 |
. . . 4
|
| 6 | df-f 3194 |
. . . 4
| |
| 7 | 5, 6 | sylibr 200 |
. . 3
|
| 8 | funi 3545 |
. . . . . . . . . . 11
| |
| 9 | 8 | a1i 8 |
. . . . . . . . . 10
|
| 10 | cnvi 3447 |
. . . . . . . . . . . 12
| |
| 11 | 10 | eqcomi 1479 |
. . . . . . . . . . 11
|
| 12 | funeq 3535 |
. . . . . . . . . . 11
| |
| 13 | 11, 12 | ax-mp 7 |
. . . . . . . . . 10
|
| 14 | 9, 13 | sylib 198 |
. . . . . . . . 9
|
| 15 | funcnvres 3568 |
. . . . . . . . . 10
| |
| 16 | imai 3417 |
. . . . . . . . . . . 12
| |
| 17 | 16 | a1i 8 |
. . . . . . . . . . 11
|
| 18 | reseq2 3369 |
. . . . . . . . . . 11
| |
| 19 | 17, 18 | syl 10 |
. . . . . . . . . 10
|
| 20 | 15, 19 | eqtrd 1507 |
. . . . . . . . 9
|
| 21 | 14, 20 | syl 10 |
. . . . . . . 8
|
| 22 | reseq1 3368 |
. . . . . . . . 9
| |
| 23 | 10, 22 | ax-mp 7 |
. . . . . . . 8
|
| 24 | 21, 23 | syl6eq 1523 |
. . . . . . 7
|
| 25 | 24 | imaeq1d 3403 |
. . . . . 6
|
| 26 | cnpimaex.1 |
. . . . . . . 8
| |
| 27 | 26 | eltopss 7603 |
. . . . . . 7
|
| 28 | resiima 3419 |
. . . . . . 7
| |
| 29 | 27, 28 | syl 10 |
. . . . . 6
|
| 30 | 25, 29 | eqtrd 1507 |
. . . . 5
|
| 31 | pm3.27 323 |
. . . . 5
| |
| 32 | 30, 31 | eqeltrd 1548 |
. . . 4
|
| 33 | 32 | r19.21aiva 1714 |
. . 3
|
| 34 | 7, 33 | jca 288 |
. 2
|
| 35 | 26, 26 | iscn 7758 |
. . 3
|
| 36 | 35 | anidms 434 |
. 2
|
| 37 | 34, 36 | mpbird 196 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: metidcn 7900 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 962 ax-gen 963 ax-8 964 ax-9 965 ax-10 966 ax-11 967 ax-12 968 ax-13 969 ax-14 970 ax-17 971 ax-4 973 ax-5o 975 ax-6o 978 ax-9o 1123 ax-10o 1140 ax-16 1210 ax-11o 1218 ax-ext 1459 ax-rep 2693 ax-sep 2703 ax-pow 2742 ax-pr 2779 ax-un 2866 |
| This theorem depends on definitions: df-bi 147 df-or 224 df-an 225 df-3an 777 df-ex 981 df-sb 1172 df-eu 1382 df-mo 1383 df-clab 1464 df-cleq 1469 df-clel 1472 df-ne 1587 df-ral 1649 df-rex 1650 df-rab 1652 df-v 1812 df-sbc 1942 df-csb 2002 df-dif 2049 df-un 2050 df-in 2051 df-ss 2053 df-nul 2281 df-pw 2402 df-sn 2412 df-pr 2413 df-op 2416 df-uni 2504 df-br 2620 df-opab 2667 df-id 2835 df-xp 3184 df-rel 3185 df-cnv 3186 df-co 3187 df-dm 3188 df-rn 3189 df-res 3190 df-ima 3191 df-fun 3192 df-fn 3193 df-f 3194 df-fv 3198 df-opr 3965 df-oprab 3966 df-map 4324 df-cn 7754 |