| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > ILE Home > Th. List > elmapg | GIF version | ||
| Description: Membership relation for set exponentiation. (Contributed by NM, 17-Oct-2006.) (Revised by Mario Carneiro, 15-Nov-2014.) |
| Ref | Expression |
|---|---|
| elmapg | ⊢ ((𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑊) → (𝐶 ∈ (𝐴 ↑𝑚 𝐵) ↔ 𝐶:𝐵⟶𝐴)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | mapvalg 6936 | . . 3 ⊢ ((𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑊) → (𝐴 ↑𝑚 𝐵) = {𝑔 ∣ 𝑔:𝐵⟶𝐴}) | |
| 2 | 1 | eleq2d 2308 | . 2 ⊢ ((𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑊) → (𝐶 ∈ (𝐴 ↑𝑚 𝐵) ↔ 𝐶 ∈ {𝑔 ∣ 𝑔:𝐵⟶𝐴})) |
| 3 | fex2 5559 | . . . . 5 ⊢ ((𝐶:𝐵⟶𝐴 ∧ 𝐵 ∈ 𝑊 ∧ 𝐴 ∈ 𝑉) → 𝐶 ∈ V) | |
| 4 | 3 | 3com13 1239 | . . . 4 ⊢ ((𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑊 ∧ 𝐶:𝐵⟶𝐴) → 𝐶 ∈ V) |
| 5 | 4 | 3expia 1236 | . . 3 ⊢ ((𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑊) → (𝐶:𝐵⟶𝐴 → 𝐶 ∈ V)) |
| 6 | feq1 5519 | . . . 4 ⊢ (𝑔 = 𝐶 → (𝑔:𝐵⟶𝐴 ↔ 𝐶:𝐵⟶𝐴)) | |
| 7 | 6 | elab3g 2977 | . . 3 ⊢ ((𝐶:𝐵⟶𝐴 → 𝐶 ∈ V) → (𝐶 ∈ {𝑔 ∣ 𝑔:𝐵⟶𝐴} ↔ 𝐶:𝐵⟶𝐴)) |
| 8 | 5, 7 | syl 14 | . 2 ⊢ ((𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑊) → (𝐶 ∈ {𝑔 ∣ 𝑔:𝐵⟶𝐴} ↔ 𝐶:𝐵⟶𝐴)) |
| 9 | 2, 8 | bitrd 188 | 1 ⊢ ((𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑊) → (𝐶 ∈ (𝐴 ↑𝑚 𝐵) ↔ 𝐶:𝐵⟶𝐴)) |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 104 ↔ wb 105 ∈ wcel 2209 {cab 2224 Vcvv 2821 ⟶wf 5376 (class class class)co 6088 ↑𝑚 cmap 6926 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 623 ax-in2 624 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-14 2212 ax-ext 2220 ax-sep 4251 ax-pow 4313 ax-pr 4348 ax-un 4580 ax-setind 4686 |
| This proof depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-fal 1408 df-nf 1514 df-sb 1816 df-eu 2089 df-mo 2090 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ne 2421 df-ral 2533 df-rex 2534 df-v 2823 df-sbc 3052 df-dif 3222 df-un 3224 df-in 3226 df-ss 3233 df-pw 3690 df-sn 3715 df-pr 3716 df-op 3718 df-uni 3936 df-br 4132 df-opab 4194 df-id 4440 df-xp 4782 df-rel 4783 df-cnv 4784 df-co 4785 df-dm 4786 df-rn 4787 df-iota 5340 df-fun 5382 df-fn 5383 df-f 5384 df-fv 5388 df-ov 6091 df-oprab 6092 df-mpo 6093 df-map 6928 |
| This theorem is used by: elmapd 6940 mapdm0 6941 elmapi 6948 elmap 6962 map0e 6971 map0g 6973 fdiagfn 6979 ixpssmap2g 7014 map1 7106 mapxpen 7153 infnninf 7471 isomnimap 7484 enomnilem 7485 ismkvmap 7501 enmkvlem 7508 iswomnimap 7513 enwomnilem 7516 hashfacen 11307 wrdnval 11358 omctfn 13393 pwselbasb 14314 psrbag 15165 psrbagaddclfi 15175 iscn 15435 iscnp 15437 cndis 15479 ispsmet 15561 ismet 15582 isxmet 15583 elcncf 15811 elply2 15973 plyf 15975 elplyr 15978 plyaddlem 15987 plymullem 15988 plyco 15997 nnsf 17266 |
| Copyright terms: Public domain | W3C validator |