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Mirrors > Home > MPE Home > Th. List > rn0 | Structured version Visualization version GIF version |
Description: The range of the empty set is empty. Part of Theorem 3.8(v) of [Monk1] p. 36. (Contributed by NM, 4-Jul-1994.) |
Ref | Expression |
---|---|
rn0 | ⊢ ran ∅ = ∅ |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | dm0 5754 | . 2 ⊢ dom ∅ = ∅ | |
2 | dm0rn0 5759 | . 2 ⊢ (dom ∅ = ∅ ↔ ran ∅ = ∅) | |
3 | 1, 2 | mpbi 233 | 1 ⊢ ran ∅ = ∅ |
Colors of variables: wff setvar class |
Syntax hints: = wceq 1538 ∅c0 4243 dom cdm 5519 ran crn 5520 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2113 ax-9 2121 ax-10 2142 ax-11 2158 ax-12 2175 ax-ext 2770 ax-sep 5167 ax-nul 5174 ax-pr 5295 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 845 df-3an 1086 df-tru 1541 df-ex 1782 df-nf 1786 df-sb 2070 df-mo 2598 df-eu 2629 df-clab 2777 df-cleq 2791 df-clel 2870 df-nfc 2938 df-v 3443 df-dif 3884 df-un 3886 df-in 3888 df-ss 3898 df-nul 4244 df-if 4426 df-sn 4526 df-pr 4528 df-op 4532 df-br 5031 df-opab 5093 df-cnv 5527 df-dm 5529 df-rn 5530 |
This theorem is referenced by: ima0 5912 0ima 5913 rnxpid 5997 xpima 6006 f0 6534 rnfvprc 6639 2ndval 7674 frxp 7803 oarec 8171 fodomr 8652 dfac5lem3 9536 itunitc 9832 relexprnd 14399 0rest 16695 arwval 17295 psgnsn 18640 oppglsm 18759 mpfrcl 20757 ply1frcl 20942 edgval 26842 0grsubgr 27068 0uhgrsubgr 27069 0ngrp 28294 bafval 28387 tocycf 30809 tocyc01 30810 locfinref 31194 esumrnmpt2 31437 sibf0 31702 mvtval 32860 mrsubvrs 32882 mstaval 32904 mzpmfp 39688 dmnonrel 40290 imanonrel 40293 conrel1d 40364 clsneibex 40805 neicvgbex 40815 sge00 43015 |
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