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| Mirrors > Home > ILE Home > Th. List > mpteq2dv | GIF version | ||
| Description: An equality inference for the maps-to notation. (Contributed by Mario Carneiro, 23-Aug-2014.) |
| Ref | Expression |
|---|---|
| mpteq2dv.1 | ⊢ (𝜑 → 𝐵 = 𝐶) |
| Ref | Expression |
|---|---|
| mpteq2dv | ⊢ (𝜑 → (𝑥 ∈ 𝐴 ↦ 𝐵) = (𝑥 ∈ 𝐴 ↦ 𝐶)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | mpteq2dv.1 | . . 3 ⊢ (𝜑 → 𝐵 = 𝐶) | |
| 2 | 1 | adantr 276 | . 2 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → 𝐵 = 𝐶) |
| 3 | 2 | mpteq2dva 4179 | 1 ⊢ (𝜑 → (𝑥 ∈ 𝐴 ↦ 𝐵) = (𝑥 ∈ 𝐴 ↦ 𝐶)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 = wceq 1397 ∈ wcel 2202 ↦ cmpt 4150 |
| 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-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-11 1554 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-ext 2213 |
| This theorem depends on definitions: df-bi 117 df-tru 1400 df-nf 1509 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-ral 2515 df-opab 4151 df-mpt 4152 |
| This theorem is referenced by: ofeqd 6236 ofeq 6237 rdgeq1 6536 rdgeq2 6537 omv 6622 oeiv 6623 0tonninf 10701 1tonninf 10702 iseqf1olemjpcl 10769 iseqf1olemqpcl 10770 iseqf1olemfvp 10771 seq3f1olemqsum 10774 seq3f1olemp 10776 summodc 11943 zsumdc 11944 fsum3 11947 prodeq2w 12116 prodmodc 12138 zproddc 12139 fprodseq 12143 nninfctlemfo 12610 1arithlem1 12935 sloteq 13086 prdsplusgval 13365 prdsmulrval 13367 qusex 13407 grplactfval 13683 cnprcl2k 14929 fsumcncntop 15290 expcn 15292 expcncf 15332 dvexp 15434 dvexp2 15435 dvmptfsum 15448 elply2 15458 elplyr 15463 elplyd 15464 plycolemc 15481 dvply2g 15489 lgsval 15732 incistruhgr 15940 peano4nninf 16608 peano3nninf 16609 nninfalllem1 16610 nninfsellemdc 16612 nninfsellemeq 16616 nninfsellemqall 16617 nninfsellemeqinf 16618 nninfomni 16621 nnnninfex 16624 |
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