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| Mirrors > Home > MPE Home > Th. List > opco1i | Structured version Visualization version GIF version | ||
| Description: Inference form of opco1 8123. (Contributed by Mario Carneiro, 28-May-2014.) (Revised by Mario Carneiro, 30-Apr-2015.) |
| Ref | Expression |
|---|---|
| opco1i.1 | ⊢ 𝐵 ∈ V |
| opco1i.2 | ⊢ 𝐶 ∈ V |
| Ref | Expression |
|---|---|
| opco1i | ⊢ (𝐵(𝐹 ∘ 1st )𝐶) = (𝐹‘𝐵) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | opco1i.1 | . . . 4 ⊢ 𝐵 ∈ V | |
| 2 | 1 | a1i 11 | . . 3 ⊢ (⊤ → 𝐵 ∈ V) |
| 3 | opco1i.2 | . . . 4 ⊢ 𝐶 ∈ V | |
| 4 | 3 | a1i 11 | . . 3 ⊢ (⊤ → 𝐶 ∈ V) |
| 5 | 2, 4 | opco1 8123 | . 2 ⊢ (⊤ → (𝐵(𝐹 ∘ 1st )𝐶) = (𝐹‘𝐵)) |
| 6 | 5 | mptru 1577 | 1 ⊢ (𝐵(𝐹 ∘ 1st )𝐶) = (𝐹‘𝐵) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1570 ⊤wtru 1571 ∈ wcel 2145 Vcvv 3453 ∘ ccom 5663 ‘cfv 6537 (class class class)co 7416 1st c1st 7987 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2215 ax-ext 2734 ax-sep 5255 ax-nul 5267 ax-pr 5402 ax-un 7739 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2566 df-eu 2596 df-clab 2741 df-cleq 2754 df-clel 2837 df-nfc 2911 df-ne 2958 df-ral 3079 df-rex 3089 df-rab 3415 df-v 3455 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-nul 4283 df-if 4486 df-sn 4588 df-pr 4590 df-op 4594 df-uni 4871 df-br 5108 df-opab 5172 df-mpt 5191 df-id 5554 df-xp 5665 df-rel 5666 df-cnv 5667 df-co 5668 df-dm 5669 df-rn 5670 df-res 5671 df-ima 5672 df-iota 6493 df-fun 6539 df-fn 6540 df-f 6541 df-fo 6543 df-fv 6545 df-ov 7419 df-1st 7989 |
| This theorem is used by: fpwwe 10658 seq1st 16665 algrf 16667 algrp1 16668 dvnff 26152 dvnp1 26154 |
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