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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 1671 |
. . 3
| |
| 2 | 1 | ss2abi 3320 |
. 2
|
| 3 | dfima3 5132 |
. 2
| |
| 4 | dfrn3 4971 |
. 2
| |
| 5 | 2, 3, 4 | 3sstr4i 3289 |
1
|
| Colors of variables: wff set class |
| This proof depends on syntax axioms:
|
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-14 2212 ax-ext 2220 ax-sep 4251 ax-pow 4313 ax-pr 4348 |
| This proof depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-nf 1514 df-sb 1816 df-eu 2089 df-mo 2090 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ral 2533 df-rex 2534 df-v 2823 df-un 3224 df-in 3226 df-ss 3233 df-pw 3690 df-sn 3715 df-pr 3716 df-op 3718 df-br 4132 df-opab 4194 df-xp 4782 df-cnv 4784 df-dm 4786 df-rn 4787 df-res 4788 df-ima 4789 |
| This theorem is used by: imaexg 5143 0ima 5150 cnvimass 5153 fimass 5553 fimacnv 5840 f1opw2 6299 smores2 6569 ecss 6854 f1imaen2g 7084 fopwdom 7140 ssenen 7156 phplem4dom 7167 isinfinf 7205 fiintim 7242 sbthlem2 7280 sbthlemi3 7281 sbthlemi5 7283 sbthlemi6 7284 ctssdccl 7457 ballotfilemsima 13317 ballotfilemro 13324 ctinf 13379 ssnnctlemct 13395 mhmima 13857 cntzmhm 14173 cnptoprest2 15466 hmeontr 15539 hmeores 15541 tgqioo 15781 domomsubct 17236 |
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