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| Mirrors > Home > ILE Home > Th. List > mapval | GIF version | ||
| Description: The value of set exponentiation (inference version). (𝐴 ↑𝑚 𝐵) is the set of all functions that map from 𝐵 to 𝐴. Definition 10.24 of [Kunen] p. 24. (Contributed by NM, 8-Dec-2003.) |
| Ref | Expression |
|---|---|
| mapval.1 | ⊢ 𝐴 ∈ V |
| mapval.2 | ⊢ 𝐵 ∈ V |
| Ref | Expression |
|---|---|
| mapval | ⊢ (𝐴 ↑𝑚 𝐵) = {𝑓 ∣ 𝑓:𝐵⟶𝐴} |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | mapval.1 | . 2 ⊢ 𝐴 ∈ V | |
| 2 | mapval.2 | . 2 ⊢ 𝐵 ∈ V | |
| 3 | mapvalg 6891 | . 2 ⊢ ((𝐴 ∈ V ∧ 𝐵 ∈ V) → (𝐴 ↑𝑚 𝐵) = {𝑓 ∣ 𝑓:𝐵⟶𝐴}) | |
| 4 | 1, 2, 3 | mp2an 426 | 1 ⊢ (𝐴 ↑𝑚 𝐵) = {𝑓 ∣ 𝑓:𝐵⟶𝐴} |
| Colors of variables: wff set class |
| Syntax hints: = wceq 1398 ∈ wcel 2203 {cab 2218 Vcvv 2812 ⟶wf 5347 (class class class)co 6049 ↑𝑚 cmap 6881 |
| 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-13 2205 ax-14 2206 ax-ext 2214 ax-sep 4227 ax-pow 4286 ax-pr 4321 ax-un 4553 ax-setind 4658 |
| 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 2083 df-mo 2084 df-clab 2219 df-cleq 2225 df-clel 2228 df-nfc 2373 df-ne 2413 df-ral 2525 df-rex 2526 df-v 2814 df-sbc 3042 df-dif 3212 df-un 3214 df-in 3216 df-ss 3223 df-pw 3670 df-sn 3694 df-pr 3695 df-op 3697 df-uni 3914 df-br 4109 df-opab 4171 df-id 4413 df-xp 4754 df-rel 4755 df-cnv 4756 df-co 4757 df-dm 4758 df-rn 4759 df-iota 5311 df-fun 5353 df-fn 5354 df-f 5355 df-fv 5359 df-ov 6052 df-oprab 6053 df-mpo 6054 df-map 6883 |
| This theorem is referenced by: exmidpw2en 7171 nninfex 7411 psrval 14801 |
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