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| Description: Functionality of the projection function. |
| Ref | Expression |
|---|---|
| pjmfn |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ax-hilex 8952 |
. . 3
| |
| 2 | 1 | opabex2 3667 |
. 2
|
| 3 | df-pj 9320 |
. 2
| |
| 4 | 2, 3 | fnopab2 3675 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: pjmf1 9744 pjssdif1i 10186 pjhmopidm 10193 pjadj3 10199 pjcmmul1i 10213 pjcmmul2i 10214 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 1003 ax-gen 1004 ax-8 1005 ax-9 1006 ax-10 1007 ax-11 1008 ax-12 1009 ax-13 1010 ax-14 1011 ax-17 1012 ax-4 1014 ax-5o 1016 ax-6o 1019 ax-9o 1164 ax-10o 1182 ax-16 1252 ax-11o 1260 ax-ext 1504 ax-rep 2748 ax-sep 2758 ax-pow 2798 ax-pr 2835 ax-un 2922 ax-hilex 8952 |
| This theorem depends on definitions: df-bi 154 df-or 231 df-an 232 df-ex 1022 df-sb 1214 df-eu 1424 df-mo 1425 df-clab 1510 df-cleq 1515 df-clel 1518 df-ne 1634 df-ral 1696 df-rex 1697 df-v 1859 df-dif 2100 df-un 2101 df-in 2102 df-ss 2104 df-nul 2332 df-pw 2454 df-sn 2464 df-pr 2465 df-op 2468 df-uni 2558 df-br 2675 df-opab 2722 df-id 2891 df-xp 3241 df-rel 3242 df-cnv 3243 df-co 3244 df-dm 3245 df-rn 3246 df-res 3247 df-ima 3248 df-fun 3249 df-fn 3250 df-pj 9320 |