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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 5792 | . 2 ⊢ dom ∅ = ∅ | |
2 | dm0rn0 5797 | . 2 ⊢ (dom ∅ = ∅ ↔ ran ∅ = ∅) | |
3 | 1, 2 | mpbi 232 | 1 ⊢ ran ∅ = ∅ |
Colors of variables: wff setvar class |
Syntax hints: = wceq 1537 ∅c0 4293 dom cdm 5557 ran crn 5558 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2161 ax-12 2177 ax-ext 2795 ax-sep 5205 ax-nul 5212 ax-pr 5332 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3an 1085 df-tru 1540 df-ex 1781 df-nf 1785 df-sb 2070 df-mo 2622 df-eu 2654 df-clab 2802 df-cleq 2816 df-clel 2895 df-nfc 2965 df-rab 3149 df-v 3498 df-dif 3941 df-un 3943 df-in 3945 df-ss 3954 df-nul 4294 df-if 4470 df-sn 4570 df-pr 4572 df-op 4576 df-br 5069 df-opab 5131 df-cnv 5565 df-dm 5567 df-rn 5568 |
This theorem is referenced by: ima0 5947 0ima 5948 rnxpid 6032 xpima 6041 f0 6562 rnfvprc 6666 2ndval 7694 frxp 7822 oarec 8190 fodomr 8670 dfac5lem3 9553 itunitc 9845 0rest 16705 arwval 17305 psgnsn 18650 oppglsm 18769 mpfrcl 20300 ply1frcl 20483 edgval 26836 0grsubgr 27062 0uhgrsubgr 27063 0ngrp 28290 bafval 28383 tocycf 30761 tocyc01 30762 locfinref 31107 esumrnmpt2 31329 sibf0 31594 mvtval 32749 mrsubvrs 32771 mstaval 32793 mzpmfp 39351 dmnonrel 39957 imanonrel 39960 conrel1d 40015 clsneibex 40459 neicvgbex 40469 sge00 42665 |
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