| Metamath Proof Explorer |
< Previous
Next >
Related theorems Unicode version |
| Description: The domain of a mapping. |
| Ref | Expression |
|---|---|
| fdm |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ffn 4562 |
. 2
| |
| 2 | fndm 4512 |
. 2
| |
| 3 | 1, 2 | syl 12 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: fdmi 4568 fcoOLD 4574 fssxp 4575 fssxpOLD 4576 ffdm 4578 dmfex 4598 dmfexOLD 4599 f00 4601 foima 4622 fornex 4625 foco 4628 f1ores 4654 f1imacnv 4656 resdif 4659 f1ococnv2 4662 fimacnv 4783 dff3 4790 fopab2 4796 cbvfo 4861 mapprc 5385 map0b 5402 mapsn 5404 brdomg 5435 ac6sfilem3 5508 fodomr 5547 mapdom2lem 5587 fodomfi 5656 fodomfib 5657 inf3lem7 5725 fodom 5960 fodomb 5962 fseqsupcl 7704 fseqsupubi 7705 infmap2 8850 iscnp2 9037 cnpnei 9043 cnpco 9046 iscncl 9047 cnsscnp 9049 cncnplem4 9054 cnconst 9057 ismet 9075 dfms2 9076 metssba 9086 metn0 9098 metreslem 9099 metres 9100 metcnplem 9164 metcnp 9165 metcnp3 9174 metcnss 9176 metcnss2 9177 grprndm 9334 resgrprn 9403 subgres 9426 isga 9450 isga2 9452 ssga 9455 gapmlem 9461 vcoprne 9530 nvdm 9621 imsdval 9649 imsba 9653 ipfval 9691 sspn 9734 basmetres 10185 tx1cn 10223 tx2cn 10224 upxp 10225 uptx 10226 txcnopab 10228 subtopmetlem 10255 ismgm 10367 ismnd2 10392 rnplrnml0 10402 dmadjrnb 11467 ghomfo 13634 soseq 13955 nodmon 13994 axbday 14012 bdaydm 14015 axdenselem2 14020 injrec 14461 surjsec 14462 surjsec2 14467 fopab2g 14485 islatalg 14531 dmrngrp 14699 mgmrddd 14727 symgfo 14730 curgrpact 14735 rngmgmbs3 14766 rnplrnml3 14768 zintdom 14787 svs3 14830 mapdiscnlem 14870 istopx 14918 bwt2 14960 topgrpbs 14974 lvsovso 15038 supnuf 15041 dcsda 15080 morcat 15127 cncls 15419 cnntr 15420 cnsubsp 15426 ivthALT 15454 cnpfillim 15589 rnelfmlem 15592 rnelfm 15593 fmfnfmlem2 15595 fmfnfmlem4 15597 fmfnfm 15598 cocanfo 15689 f1ocan1fv 15717 upixp 15729 indexdom 15754 cnss 15892 paste 15893 ismtyhmeolem 15950 ismtyres 15954 heiborlem33 15987 heiborlem34 15988 exidreslem 16030 isablda 16035 ghomco 16040 grpkerinj 16042 reparpht 16065 pi1set 16096 divrngcl 16110 isdivrng2 16111 keridl 16180 smoiso 16453 addcomgi 16455 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 |
| This theorem depends on definitions: df-bi 164 df-an 242 df-fn 4009 df-f 4010 |