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| Mirrors > Home > ILE Home > Th. List > iftruei | GIF version | ||
| Description: Inference associated with iftrue 3614. (Contributed by BJ, 7-Oct-2018.) |
| Ref | Expression |
|---|---|
| iftruei.1 | ⊢ 𝜑 |
| Ref | Expression |
|---|---|
| iftruei | ⊢ if(𝜑, 𝐴, 𝐵) = 𝐴 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | iftruei.1 | . 2 ⊢ 𝜑 | |
| 2 | iftrue 3614 | . 2 ⊢ (𝜑 → if(𝜑, 𝐴, 𝐵) = 𝐴) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ if(𝜑, 𝐴, 𝐵) = 𝐴 |
| Colors of variables: wff set class |
| Syntax hints: = wceq 1398 ifcif 3607 |
| 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-in2 620 ax-io 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-11 1555 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-ext 2213 |
| This theorem depends on definitions: df-bi 117 df-nf 1510 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-if 3608 |
| This theorem is referenced by: ctmlemr 7350 xnegpnf 10107 xnegmnf 10108 xaddpnf1 10125 xaddpnf2 10126 xaddmnf1 10127 xaddmnf2 10128 pnfaddmnf 10129 mnfaddpnf 10130 iseqf1olemqk 10815 exp0 10851 swrd00g 11279 sumsnf 12033 prodsnf 12216 lcm0val 12700 ennnfonelemj0 13085 ennnfonelem0 13089 mulg0 13775 lgs0 15815 lgs2 15819 2lgs2 15904 1loopgrvd2fi 16229 eupth2fi 16403 peano3nninf 16716 dceqnconst 16776 |
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