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| Mirrors > Home > ILE Home > Th. List > prodeq1d | GIF version | ||
| Description: Equality deduction for product. (Contributed by Scott Fenton, 4-Dec-2017.) |
| Ref | Expression |
|---|---|
| prodeq1d.1 | ⊢ (𝜑 → 𝐴 = 𝐵) |
| Ref | Expression |
|---|---|
| prodeq1d | ⊢ (𝜑 → ∏𝑘 ∈ 𝐴 𝐶 = ∏𝑘 ∈ 𝐵 𝐶) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | prodeq1d.1 | . 2 ⊢ (𝜑 → 𝐴 = 𝐵) | |
| 2 | prodeq1 12235 | . 2 ⊢ (𝐴 = 𝐵 → ∏𝑘 ∈ 𝐴 𝐶 = ∏𝑘 ∈ 𝐵 𝐶) | |
| 3 | 1, 2 | syl 14 | 1 ⊢ (𝜑 → ∏𝑘 ∈ 𝐴 𝐶 = ∏𝑘 ∈ 𝐵 𝐶) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 = wceq 1398 ∏cprod 12232 |
| 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-ext 2214 |
| This theorem depends on definitions: df-bi 117 df-dc 843 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1812 df-clab 2219 df-cleq 2225 df-clel 2228 df-nfc 2373 df-ral 2525 df-rex 2526 df-v 2814 df-un 3214 df-in 3216 df-ss 3223 df-if 3620 df-sn 3694 df-pr 3695 df-op 3697 df-uni 3914 df-br 4109 df-opab 4171 df-mpt 4172 df-cnv 4756 df-dm 4758 df-rn 4759 df-res 4760 df-iota 5311 df-f 5355 df-f1 5356 df-fo 5357 df-f1o 5358 df-fv 5359 df-ov 6052 df-oprab 6053 df-mpo 6054 df-recs 6535 df-frec 6621 df-seqfrec 10809 df-proddc 12233 |
| This theorem is referenced by: prodeq12dv 12251 prodeq12rdv 12252 fprodf1o 12270 fprod1 12276 fprodp1 12282 fprodcl2lem 12287 fprodfac 12297 fprodabs 12298 fprod2d 12305 fprodcom2fi 12308 eulerthlemrprm 12922 eulerthlema 12923 gausslemma2dlem4 15929 |
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