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| Mirrors > Home > MPE Home > Th. List > rnxp | Structured version Visualization version GIF version | ||
| Description: The range of a Cartesian product. Part of Theorem 3.13(x) of [Monk1] p. 37. (Contributed by NM, 12-Apr-2004.) |
| Ref | Expression |
|---|---|
| rnxp | ⊢ (𝐴 ≠ ∅ → ran (𝐴 × 𝐵) = 𝐵) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-rn 5670 | . . 3 ⊢ 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 | 1, 3 | eqtri 2785 | . 2 ⊢ ran (𝐴 × 𝐵) = dom (𝐵 × 𝐴) |
| 5 | dmxp 5917 | . 2 ⊢ (𝐴 ≠ ∅ → dom (𝐵 × 𝐴) = 𝐵) | |
| 6 | 4, 5 | eqtrid 2809 | 1 ⊢ (𝐴 ≠ ∅ → ran (𝐴 × 𝐵) = 𝐵) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 = wceq 1570 ≠ wne 2957 ∅c0 4282 × 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: rnxpid 6170 ssxpb 6171 xpima 6179 unixp 6284 fconst5 7209 rnmptc 7210 xpexr 7919 xpexr2 7920 fparlem3 8115 fparlem4 8116 frxp 8128 fodomr 9130 fodomfir 9301 djuexb 9918 dfac5lem3 10132 fpwwe2lem12 10655 vdwlem8 17086 ramz 17123 gsumxp 20109 xkoccn 23851 txindislem 23865 cnextf 24298 metustexhalf 24788 ovolctb 25724 axlowdimlem13 29419 axlowdim1 29424 imadifxp 33082 sibf0 34853 ovoliunnfl 38419 voliunnfl 38421 dmrnxp 49773 idfudiag1lem 50457 |
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