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| Description: Image under the identity relation. Theorem 3.16(viii) of [Monk1] p. 38. |
| Ref | Expression |
|---|---|
| imai |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | dfima3 3412 |
. 2
| |
| 2 | df-br 2625 |
. . . . . . . 8
| |
| 3 | visset 1816 |
. . . . . . . . 9
| |
| 4 | 3 | ideq 3283 |
. . . . . . . 8
|
| 5 | 2, 4 | bitr3 175 |
. . . . . . 7
|
| 6 | 5 | anbi2i 482 |
. . . . . 6
|
| 7 | ancom 437 |
. . . . . 6
| |
| 8 | 6, 7 | bitr 173 |
. . . . 5
|
| 9 | 8 | exbii 1053 |
. . . 4
|
| 10 | eleq1 1537 |
. . . . 5
| |
| 11 | 3, 10 | ceqsexv 1838 |
. . . 4
|
| 12 | 9, 11 | bitr 173 |
. . 3
|
| 13 | 12 | abbii 1578 |
. 2
|
| 14 | abid2 1583 |
. 2
| |
| 15 | 1, 13, 14 | 3eqtr 1502 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: rnresi 3424 cnvresid 3575 ecidsn 4293 idcn 7763 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 964 ax-gen 965 ax-8 966 ax-10 968 ax-11 969 ax-12 970 ax-13 971 ax-14 972 ax-17 973 ax-4 975 ax-5o 977 ax-6o 980 ax-9o 1125 ax-10o 1142 ax-16 1212 ax-11o 1220 ax-ext 1462 ax-sep 2708 ax-pow 2748 ax-pr 2785 |
| This theorem depends on definitions: df-bi 147 df-or 224 df-an 225 df-ex 983 df-sb 1174 df-eu 1384 df-mo 1385 df-clab 1467 df-cleq 1472 df-clel 1475 df-ne 1590 df-rex 1653 df-v 1815 df-dif 2052 df-un 2053 df-in 2054 df-ss 2056 df-nul 2284 df-pw 2406 df-sn 2416 df-pr 2417 df-op 2420 df-br 2625 df-opab 2672 df-id 2841 df-xp 3190 df-rel 3191 df-cnv 3192 df-dm 3194 df-rn 3195 df-res 3196 df-ima 3197 |