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Mirrors > Home > MPE Home > Th. List > Mathboxes > imanonrel | Structured version Visualization version GIF version |
Description: An image under the non-relation part of a class is empty. (Contributed by RP, 22-Oct-2020.) |
Ref | Expression |
---|---|
imanonrel | ⊢ ((𝐴 ∖ ◡◡𝐴) “ 𝐵) = ∅ |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-ima 5706 | . 2 ⊢ ((𝐴 ∖ ◡◡𝐴) “ 𝐵) = ran ((𝐴 ∖ ◡◡𝐴) ↾ 𝐵) | |
2 | resnonrel 43598 | . . 3 ⊢ ((𝐴 ∖ ◡◡𝐴) ↾ 𝐵) = ∅ | |
3 | 2 | rneqi 5955 | . 2 ⊢ ran ((𝐴 ∖ ◡◡𝐴) ↾ 𝐵) = ran ∅ |
4 | rn0 5943 | . 2 ⊢ ran ∅ = ∅ | |
5 | 1, 3, 4 | 3eqtri 2769 | 1 ⊢ ((𝐴 ∖ ◡◡𝐴) “ 𝐵) = ∅ |
Colors of variables: wff setvar class |
Syntax hints: = wceq 1539 ∖ cdif 3963 ∅c0 4342 ◡ccnv 5692 ran crn 5694 ↾ cres 5695 “ cima 5696 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1794 ax-4 1808 ax-5 1910 ax-6 1967 ax-7 2007 ax-8 2110 ax-9 2118 ax-10 2141 ax-11 2157 ax-12 2177 ax-ext 2708 ax-sep 5305 ax-nul 5315 ax-pr 5441 |
This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3an 1089 df-tru 1542 df-fal 1552 df-ex 1779 df-nf 1783 df-sb 2065 df-clab 2715 df-cleq 2729 df-clel 2816 df-rab 3437 df-v 3483 df-dif 3969 df-un 3971 df-in 3973 df-ss 3983 df-nul 4343 df-if 4535 df-sn 4635 df-pr 4637 df-op 4641 df-br 5152 df-opab 5214 df-xp 5699 df-rel 5700 df-cnv 5701 df-dm 5703 df-rn 5704 df-res 5705 df-ima 5706 |
This theorem is referenced by: (None) |
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