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| Mirrors > Home > ILE Home > Th. List > fovcl | GIF version | ||
| Description: Closure law for an operation. (Contributed by NM, 19-Apr-2007.) (Proof shortened by AV, 9-Mar-2025.) |
| Ref | Expression |
|---|---|
| fovcl.1 | ⊢ 𝐹:(𝑅 × 𝑆)⟶𝐶 |
| Ref | Expression |
|---|---|
| fovcl | ⊢ ((𝐴 ∈ 𝑅 ∧ 𝐵 ∈ 𝑆) → (𝐴𝐹𝐵) ∈ 𝐶) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | fovcl.1 | . . . 4 ⊢ 𝐹:(𝑅 × 𝑆)⟶𝐶 | |
| 2 | 1 | a1i 9 | . . 3 ⊢ (𝐴 ∈ 𝑅 → 𝐹:(𝑅 × 𝑆)⟶𝐶) |
| 3 | 2 | fovcld 6050 | . 2 ⊢ ((𝐴 ∈ 𝑅 ∧ 𝐴 ∈ 𝑅 ∧ 𝐵 ∈ 𝑆) → (𝐴𝐹𝐵) ∈ 𝐶) |
| 4 | 3 | 3anidm12 1308 | 1 ⊢ ((𝐴 ∈ 𝑅 ∧ 𝐵 ∈ 𝑆) → (𝐴𝐹𝐵) ∈ 𝐶) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∧ wa 104 ∈ wcel 2176 × cxp 4673 ⟶wf 5267 (class class class)co 5944 |
| 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-io 711 ax-5 1470 ax-7 1471 ax-gen 1472 ax-ie1 1516 ax-ie2 1517 ax-8 1527 ax-10 1528 ax-11 1529 ax-i12 1530 ax-bndl 1532 ax-4 1533 ax-17 1549 ax-i9 1553 ax-ial 1557 ax-i5r 1558 ax-14 2179 ax-ext 2187 ax-sep 4162 ax-pow 4218 ax-pr 4253 |
| This theorem depends on definitions: df-bi 117 df-3an 983 df-tru 1376 df-nf 1484 df-sb 1786 df-eu 2057 df-mo 2058 df-clab 2192 df-cleq 2198 df-clel 2201 df-nfc 2337 df-ral 2489 df-rex 2490 df-v 2774 df-sbc 2999 df-csb 3094 df-un 3170 df-in 3172 df-ss 3179 df-pw 3618 df-sn 3639 df-pr 3640 df-op 3642 df-uni 3851 df-iun 3929 df-br 4045 df-opab 4106 df-mpt 4107 df-id 4340 df-xp 4681 df-rel 4682 df-cnv 4683 df-co 4684 df-dm 4685 df-rn 4686 df-iota 5232 df-fun 5273 df-fn 5274 df-f 5275 df-fv 5279 df-ov 5947 |
| This theorem is referenced by: xaddcl 9982 ixxssxr 10022 fzof 10266 elfzoelz 10269 fzoval 10270 addcncntoplem 15033 sgmcl 15459 |
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