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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 5129 |
. 2
| |
| 4 | dfrn3 4969 |
. 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 4249 ax-pow 4311 ax-pr 4346 |
| 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 4131 df-opab 4193 df-xp 4780 df-cnv 4782 df-dm 4784 df-rn 4785 df-res 4786 df-ima 4787 |
| This theorem is used by: imaexg 5140 0ima 5147 cnvimass 5150 fimass 5550 fimacnv 5837 f1opw2 6296 smores2 6565 ecss 6850 f1imaen2g 7080 fopwdom 7136 ssenen 7152 phplem4dom 7163 isinfinf 7201 fiintim 7238 sbthlem2 7275 sbthlemi3 7276 sbthlemi5 7278 sbthlemi6 7279 ctssdccl 7451 ballotfilemsima 13259 ballotfilemro 13266 ctinf 13321 ssnnctlemct 13337 mhmima 13798 cnptoprest2 15341 hmeontr 15414 hmeores 15416 tgqioo 15656 domomsubct 17031 |
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