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Mirrors > Home > ILE Home > Th. List > cnvimass | Unicode version |
Description: A preimage under any class is included in the domain of the class. (Contributed by FL, 29-Jan-2007.) |
Ref | Expression |
---|---|
cnvimass |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | imassrn 4951 | . 2 | |
2 | dfdm4 4790 | . 2 | |
3 | 1, 2 | sseqtrri 3172 | 1 |
Colors of variables: wff set class |
Syntax hints: wss 3111 ccnv 4597 cdm 4598 crn 4599 cima 4601 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-io 699 ax-5 1434 ax-7 1435 ax-gen 1436 ax-ie1 1480 ax-ie2 1481 ax-8 1491 ax-10 1492 ax-11 1493 ax-i12 1494 ax-bndl 1496 ax-4 1497 ax-17 1513 ax-i9 1517 ax-ial 1521 ax-i5r 1522 ax-14 2138 ax-ext 2146 ax-sep 4094 ax-pow 4147 ax-pr 4181 |
This theorem depends on definitions: df-bi 116 df-3an 969 df-tru 1345 df-nf 1448 df-sb 1750 df-eu 2016 df-mo 2017 df-clab 2151 df-cleq 2157 df-clel 2160 df-nfc 2295 df-ral 2447 df-rex 2448 df-v 2723 df-un 3115 df-in 3117 df-ss 3124 df-pw 3555 df-sn 3576 df-pr 3577 df-op 3579 df-br 3977 df-opab 4038 df-xp 4604 df-cnv 4606 df-dm 4608 df-rn 4609 df-res 4610 df-ima 4611 |
This theorem is referenced by: fvimacnvi 5593 elpreima 5598 fconst4m 5699 nn0supp 9157 fisumss 11319 fprodssdc 11517 cnpnei 12760 cnclima 12764 cnntri 12765 cnntr 12766 cncnp 12771 cnrest2 12777 cndis 12782 txcnmpt 12814 txdis1cn 12819 hmeoimaf1o 12855 xmeter 12977 |
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