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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 5661 | . 2 ⊢ ran (𝐴 × 𝐵) = dom ◡(𝐴 × 𝐵) | |
| 2 | cnvxp 6146 | . . . 4 ⊢ ◡(𝐴 × 𝐵) = (𝐵 × 𝐴) | |
| 3 | 2 | dmeqi 5885 | . . 3 ⊢ dom ◡(𝐴 × 𝐵) = dom (𝐵 × 𝐴) |
| 4 | dmxpss 6162 | . . 3 ⊢ dom (𝐵 × 𝐴) ⊆ 𝐵 | |
| 5 | 3, 4 | eqsstri 3954 | . 2 ⊢ dom ◡(𝐴 × 𝐵) ⊆ 𝐵 |
| 6 | 1, 5 | eqsstri 3954 | 1 ⊢ ran (𝐴 × 𝐵) ⊆ 𝐵 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ⊆ wss 3895 × cxp 5648 ◡ccnv 5649 dom cdm 5650 ran crn 5651 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-ext 2732 ax-sep 5248 ax-pr 5390 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-sb 2099 df-clab 2739 df-cleq 2752 df-clel 2835 df-ne 2956 df-ral 3077 df-rex 3087 df-rab 3413 df-v 3452 df-ss 3896 df-dif 4047 df-in 4091 df-un 4151 df-nul 4279 df-if 4482 df-sn 4584 df-pr 4586 df-op 4590 df-br 5103 df-opab 5167 df-xp 5656 df-rel 5657 df-cnv 5658 df-dm 5660 df-rn 5661 |
| This theorem is used by: ssxpb 6165 ssrnres 6169 resssxp 6272 funssxp 6738 fconst 6768 dff2 7099 dff3 7100 fliftf 7323 frxp2 8161 frxp3 8168 marypha1lem 9426 marypha1 9427 dfac12lem2 10224 brdom4 10610 nqerf 11016 xptrrel 15134 lern 18766 cnconst2 23602 lmss 23617 tsmsxplem1 24473 causs 25620 i1f0 26009 itg10 26010 taylf 26689 noextendseq 28025 perpln2 29187 gsumpart 33667 locfinref 34516 sitg0 35021 heicant 38649 rntrclfvOAI 43778 rtrclex 44693 trclexi 44696 rtrclexi 44697 cnvtrcl0 44702 rntrcl 44704 brtrclfv2 44803 xphe 44857 rfovcnvf1od 45080 rnhfstructsshf 46103 |
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