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| Mirrors > Home > MPE Home > Th. List > rnxpss | Structured version Visualization version GIF version | ||
| Description: The range of a Cartesian product is included in its second factor. (Contributed by NM, 16-Jan-2006.) (Proof shortened by Andrew Salmon, 27-Aug-2011.) |
| Ref | Expression |
|---|---|
| rnxpss | ⊢ ran (𝐴 × 𝐵) ⊆ 𝐵 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-rn 5670 | . 2 ⊢ ran (𝐴 × 𝐵) = dom ◡(𝐴 × 𝐵) | |
| 2 | cnvxp 6152 | . . . 4 ⊢ ◡(𝐴 × 𝐵) = (𝐵 × 𝐴) | |
| 3 | 2 | dmeqi 5892 | . . 3 ⊢ dom ◡(𝐴 × 𝐵) = dom (𝐵 × 𝐴) |
| 4 | dmxpss 6168 | . . 3 ⊢ dom (𝐵 × 𝐴) ⊆ 𝐵 | |
| 5 | 3, 4 | eqsstri 3980 | . 2 ⊢ dom ◡(𝐴 × 𝐵) ⊆ 𝐵 |
| 6 | 1, 5 | eqsstri 3980 | 1 ⊢ ran (𝐴 × 𝐵) ⊆ 𝐵 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ⊆ wss 3902 × cxp 5657 ◡ccnv 5658 dom cdm 5659 ran crn 5660 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-ext 2734 ax-sep 5255 ax-pr 5402 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-sb 2100 df-clab 2741 df-cleq 2754 df-clel 2837 df-ne 2958 df-ral 3079 df-rex 3089 df-rab 3415 df-v 3455 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-nul 4283 df-if 4486 df-sn 4588 df-pr 4590 df-op 4594 df-br 5108 df-opab 5172 df-xp 5665 df-rel 5666 df-cnv 5667 df-dm 5669 df-rn 5670 |
| This theorem is used by: ssxpb 6171 ssrnres 6175 resssxp 6271 funssxp 6735 fconst 6765 dff2 7095 dff3 7096 fliftf 7319 frxp2 8145 frxp3 8152 marypha1lem 9406 marypha1 9407 dfac12lem2 10150 brdom4 10536 nqerf 10942 xptrrel 15055 lern 18683 cnconst2 23512 lmss 23527 tsmsxplem1 24383 causs 25530 i1f0 25919 itg10 25920 taylf 26597 noextendseq 27904 perpln2 29066 gsumpart 33505 locfinref 34353 sitg0 34859 heicant 38406 rntrclfvOAI 43538 rtrclex 44459 trclexi 44462 rtrclexi 44463 cnvtrcl0 44468 rntrcl 44470 brtrclfv2 44569 xphe 44623 rfovcnvf1od 44846 |
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