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| Mirrors > Home > ILE Home > Th. List > imassrn | Unicode version | ||
| Description: The image of a class is a subset of its range. Theorem 3.16(xi) of [Monk1] p. 39. (Contributed by NM, 31-Mar-1995.) | 
| Ref | Expression | 
|---|---|
| imassrn | 
 | 
| Step | Hyp | Ref | Expression | 
|---|---|---|---|
| 1 | exsimpr 1632 | 
. . 3
 | |
| 2 | 1 | ss2abi 3255 | 
. 2
 | 
| 3 | dfima3 5012 | 
. 2
 | |
| 4 | dfrn3 4855 | 
. 2
 | |
| 5 | 2, 3, 4 | 3sstr4i 3224 | 
1
 | 
| Colors of variables: wff set class | 
| Syntax hints:     | 
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 710 ax-5 1461 ax-7 1462 ax-gen 1463 ax-ie1 1507 ax-ie2 1508 ax-8 1518 ax-10 1519 ax-11 1520 ax-i12 1521 ax-bndl 1523 ax-4 1524 ax-17 1540 ax-i9 1544 ax-ial 1548 ax-i5r 1549 ax-14 2170 ax-ext 2178 ax-sep 4151 ax-pow 4207 ax-pr 4242 | 
| This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1367 df-nf 1475 df-sb 1777 df-eu 2048 df-mo 2049 df-clab 2183 df-cleq 2189 df-clel 2192 df-nfc 2328 df-ral 2480 df-rex 2481 df-v 2765 df-un 3161 df-in 3163 df-ss 3170 df-pw 3607 df-sn 3628 df-pr 3629 df-op 3631 df-br 4034 df-opab 4095 df-xp 4669 df-cnv 4671 df-dm 4673 df-rn 4674 df-res 4675 df-ima 4676 | 
| This theorem is referenced by: imaexg 5023 0ima 5029 cnvimass 5032 fimacnv 5691 f1opw2 6129 smores2 6352 ecss 6635 f1imaen2g 6852 fopwdom 6897 ssenen 6912 phplem4dom 6923 isinfinf 6958 fiintim 6992 sbthlem2 7024 sbthlemi3 7025 sbthlemi5 7027 sbthlemi6 7028 ctssdccl 7177 ctinf 12647 ssnnctlemct 12663 mhmima 13123 cnptoprest2 14476 hmeontr 14549 hmeores 14551 tgqioo 14791 | 
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