| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > ILE Home > Th. List > ima0 | GIF version | ||
| Description: Image of the empty set. Theorem 3.16(ii) of [Monk1] p. 38. (Contributed by NM, 20-May-1998.) |
| Ref | Expression |
|---|---|
| ima0 | ⊢ (𝐴 “ ∅) = ∅ |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-ima 4767 | . 2 ⊢ (𝐴 “ ∅) = ran (𝐴 ↾ ∅) | |
| 2 | res0 5047 | . . 3 ⊢ (𝐴 ↾ ∅) = ∅ | |
| 3 | 2 | rneqi 4990 | . 2 ⊢ ran (𝐴 ↾ ∅) = ran ∅ |
| 4 | rn0 5018 | . 2 ⊢ ran ∅ = ∅ | |
| 5 | 1, 3, 4 | 3eqtri 2259 | 1 ⊢ (𝐴 “ ∅) = ∅ |
| Colors of variables: wff set class |
| Syntax hints: = wceq 1398 ∅c0 3512 ran crn 4755 ↾ cres 4756 “ cima 4757 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 619 ax-in2 620 ax-io 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-14 2208 ax-ext 2216 ax-sep 4233 ax-pow 4292 ax-pr 4327 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-fal 1404 df-nf 1510 df-sb 1812 df-eu 2085 df-mo 2086 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-v 2817 df-dif 3216 df-un 3218 df-in 3220 df-ss 3227 df-nul 3513 df-pw 3676 df-sn 3700 df-pr 3701 df-op 3703 df-br 4115 df-opab 4177 df-xp 4760 df-cnv 4762 df-dm 4764 df-rn 4765 df-res 4766 df-ima 4767 |
| This theorem is referenced by: supp0cosupp0fn 6480 fiintim 7204 fidcenumlemrk 7237 fidcenumlemr 7238 ennnfonelem1 13242 ennnfonelemhf1o 13248 eupth2lembfi 16584 |
| Copyright terms: Public domain | W3C validator |